DEPARTMENT 22 - MAJOR CONTESTS
SECTION 1 - TRUCK & TRACTOR PULLS
Chairperson (General Questions & Trucks): John Mandziara 570-665-9750 or [email protected]
Co-Chairperson (Tractors): Chris Baker 570-665-0203
Wednesday Night, September 2, 2026 @ 6pm
Thursday Night, September 3, 2026 @ 6pm
Friday Morning, September 4, 2026 @ 10am
Friday Night, September 4, 2026 @ 6pm
$30 per hook: Night #1 Sept. 2nd
200. 8,000 Wild Street Diesel Trucks - $800 Purse with 5 placings ($320, $240, $120, $80, $40)
201. 6,300 Pro Street Gas Trucks (Night 1) - $1,250 Purse with 5 placings ($500, $375, $187.50, $125, $62.50)
$30 per hook: Night #2 Sept. 3rd
202. 7,800 Street Gas Trucks - $500 Purse with 5 placings ($200, $150, $75, $50, $25)
203. 6,200 Mod Street Gas Trucks - $1,000 Purse with 5 placings ($400, $300, $150, $100, $50)
204. 6,300 Pro Street Gas Trucks (Night 2) - $1,250 Purse with 5 placings ($500, $375, $187.50, $125, $62.50)
$10 per hook: Morning #3 Sept. 4th - 2 Hooks Max
99. 5,000 Antique Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
100. 6,000 Antique Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
101. 7,000 Antique Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
102. 9,000 Turbo Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
103. 11,000 Turbo Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
104. 13,000 Turbo Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
105. Run What Ya Brung - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
$30 per hook: Night #3 Sept. 4th
300. King of the Farm - $1,600 Purse with 5 placings ($640, $480, $240, $160, $80)
301. Street Semis - $1,000 Purse with 5 placings ($400, $300, $150, $100, $50)
Pull-Off Productions Classes (Paid by Pull-Off Productions) Hook Fees Subject to Pull-Off Productions
Night #1 Sept. 2nd
2.6 Diesel Trucks (Night 1)
3.0 Diesel Trucks (Night 1)
King of the Street
Night #2 Sept. 3rd
10,000 lb Open (Tractors, Modifieds)
Night #3 Sept. 4th
Hot Stock/Hot Farm Tractors
National Modified 4x4
2.6 Diesel Trucks (Night 2)
3.0 Diesel Trucks (Night 2)
Super Stock 4x4
Bonus Purse Alert! The Pro Street Gas class will compete for an additional purse, awarded to the best distance over the two nights. The 2.6 and 3.0 Diesel classes will also compete for an additional purse based on the best distance over both nights.
200. 8,000 Wild Street Diesel Trucks - $800 Purse with 5 placings ($320, $240, $120, $80, $40)
201. 6,300 Pro Street Gas Trucks (Night 1) - $1,250 Purse with 5 placings ($500, $375, $187.50, $125, $62.50)
$30 per hook: Night #2 Sept. 3rd
202. 7,800 Street Gas Trucks - $500 Purse with 5 placings ($200, $150, $75, $50, $25)
203. 6,200 Mod Street Gas Trucks - $1,000 Purse with 5 placings ($400, $300, $150, $100, $50)
204. 6,300 Pro Street Gas Trucks (Night 2) - $1,250 Purse with 5 placings ($500, $375, $187.50, $125, $62.50)
$10 per hook: Morning #3 Sept. 4th - 2 Hooks Max
99. 5,000 Antique Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
100. 6,000 Antique Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
101. 7,000 Antique Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
102. 9,000 Turbo Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
103. 11,000 Turbo Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
104. 13,000 Turbo Tractors - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
105. Run What Ya Brung - $300 Purse with 5 placings ($120, $90, $45, $30, $15)
$30 per hook: Night #3 Sept. 4th
300. King of the Farm - $1,600 Purse with 5 placings ($640, $480, $240, $160, $80)
301. Street Semis - $1,000 Purse with 5 placings ($400, $300, $150, $100, $50)
Pull-Off Productions Classes (Paid by Pull-Off Productions) Hook Fees Subject to Pull-Off Productions
Night #1 Sept. 2nd
2.6 Diesel Trucks (Night 1)
3.0 Diesel Trucks (Night 1)
King of the Street
Night #2 Sept. 3rd
10,000 lb Open (Tractors, Modifieds)
Night #3 Sept. 4th
Hot Stock/Hot Farm Tractors
National Modified 4x4
2.6 Diesel Trucks (Night 2)
3.0 Diesel Trucks (Night 2)
Super Stock 4x4
Bonus Purse Alert! The Pro Street Gas class will compete for an additional purse, awarded to the best distance over the two nights. The 2.6 and 3.0 Diesel classes will also compete for an additional purse based on the best distance over both nights.
Event Rules:
Competitor Conduct:
Protest Rule:
The contestant must sign a protest form and submit $200 in cash to the competition director along with the reason for the protest before the protest can be discussed with the competition director. The protest will be reviewed by the rules committee. If the vehicle or contestant have been found to be valid and there was a violation of the rules the deposit will be returned to the person who filed the protest. If the protest was not valid and there was no violation of the rules the deposit will go to the Fair.
- All classes are open to anyone from any county or state.
- Drivers/Crew Members must be 18 years old or 16 years old with signed consent by a parent or legal guardian. If requested, photo ID must be provided as proof of age.
- The driver and only one crew member will be admitted to the Fair at no charge and will be the only ones permitted into the pit/pulling area. Those individuals will be given a wristband when they enter their event. Wristbands must be worn at all times and will be your pass to get into the pit/pulling area. Anyone without a wristband and will NOT be permitted.
- Individuals wishing to purchase the additional wristband may only do so if they 16 years of age or older (under 18 requires parent/guardian signature) and has signed a liability waiver. This wristband does not include entry into the Fair, each person must have purchased a Fair entry wristband at the gate before they will be permitted to purchase a pit/pulling area wristband.
- All drivers and crew members must sign a release of liability waiver in order to enter the pit/pulling area. Absolutely no one under 16 years of age will be permitted. If requested, photo ID must be provided as proof of age.
- Competitors should be on the grounds at least two (2) hours before their pulling time, tech inspection area will close one hour prior to the scheduled start of the event.
- All drivers must attend a driver’s meeting held ½ hour before the event begins.
- Competitors and crew members will observe their class rules as well as the event rules.
- Tractors and trucks must be removed from the grounds the night of the pull.
- All competitors must wear a sleeved shirt, pants, and shoes.
- One hook per class unless you’re the first puller. First puller may drop their first hook and pull last, but they must keep that one.
- Registration for each event will close one hour after the scheduled start time.
- Once a class begins, no additional entries will be accepted for that class.
- Once an entry is made, no refunds will be issued regardless of the reason for scratching.
- Any harassment towards staff or officials will result in disqualification and loss of entry fee and prize money.
- Tech inspectors and Judges decisions are final.
- It is understood that the Wyoming County Fair will not be responsible for any breakage or damage incurred to any equipment.
- Disclaimer: ANY DRIVER ARGUING WITH TRACK OFFICIALS OR TECH OFFICIALS WILL IMMEDIATELY BE DISQUALIFIED AND ASKED TO LEAVE THE GROUNDS. ALL DECISIONS ARE FINAL!
Competitor Conduct:
- Pulling vehicles must be operated in a safe manner at all times.
- The operator must retain seat during the pull and must have complete control of the vehicle at all times.
- Only the driver will be allowed on a vehicle when it is being towed. NO RIDERS.
- If any driver or any of his/her crew is incapacitated due to intoxication or drugs, his/her truck or tractor will be disqualified, and they will forfeit entry fees and prize money.
Protest Rule:
The contestant must sign a protest form and submit $200 in cash to the competition director along with the reason for the protest before the protest can be discussed with the competition director. The protest will be reviewed by the rules committee. If the vehicle or contestant have been found to be valid and there was a violation of the rules the deposit will be returned to the person who filed the protest. If the protest was not valid and there was no violation of the rules the deposit will go to the Fair.
Class Rules
Wild Street Trucks
Credentials: Must be licensed, insured, and street legal. All drivers must have current driver’s license. Vehicles may be 2- or 4-wheel drive. Vehicle may be gas or diesel engine. All pulling vehicles may be held for a pre/post competition inspection. Failure to abide may result in a disqualification.
1. OEM restraint system is mandatory and must be worn. Helmets are Mandatory. No exceptions.
2. Vehicle must retain FULL OEM interior. This includes all seating as designed for cab configuration, full dash, door panels, carpet/vinyl flooring, etc.
3. Ballast is permitted and must be secured in pickup bed only. Front hanging weights is prohibited. Weight in the cab or engine bay is prohibited. 8500 lbs with driver.
4. Body must retain full OEM truck body. Aftermarket hoods permitted. Aftermarket (ranch hand, roll pans, or other) bumpers permitted. Snow plow mounts permitted; snow plow frame prohibited. All headlight assemblies must be installed. Window tint is permitted.
5. Driveline must retain OEM style driveline from one ton truck or less. Planetary axles, dropbox, and/or reverser are prohibited. Driveline components may be swapped between manufacturers. Driveshaft size and material may be upgraded. Drive shaft loops will be recommended. Pull-Off Productions Officials have to the right to tell you if you need drive shaft loops and shields.
6. Engine must have been offered as an OEM engine in a one ton or less truck. Engine can be interchanged between manufactures.
7. Hitch heights are as follows.
20 inch 4x4 diesel or turbo gas
24 inch 4x4 naturally aspirated gas
26 inch 2wd diesel
30 inch 2wd naturally aspirated gas
Hitch is different heights to level out class and attempt to keep everyone competitive. Please be sure you can get it to the correct height. Reese style hitches only. Draw bar style or “trick” hitches prohibited. Hook point must extend beyond the back of bumper/rollpan. Reese hitch must be attached to the frame within ten (10) inches of the end of the frame rails from the rear. Hitch reinforcements must not extend forward of the centerline of the rear axle. Hitch may be bolted or welded for attachment to the frame, Hitch receiver must be welded to the cross member. Shortening of the bed in order to
shorten the hook point is not permitted. NO alteration or modified frame rails. Must be OEM frame rails. Hitch must be stationary in all directions. Clevises are prohibited. Hook loop must be a minimum ¾” x ¾” thick at any point, must be made of steel, and not more than 1.5” X 1.5” at hook point. Final decision of legality of hitch resides with Pull-Off Productions head tech official.
8. Compressed injectables (nitrous, propane, etc.) is prohibited. If caught, banned for a year from the date you were caught.
9. Exhaust MUST point upwards. HOOD STACKS PROHIBITED. NO EXCEPTIONS. If exhaust is exiting under bed side, must have turn up tip to point exhaust upwards. (MUST be a 90 degree elbow stick straight up at least 12-inches minimum) Exhaust must exit after the back of cab. It may exit through the bed (bed stack) or under the bed. Aftermarket exhaust permitted. Exhaust must have (2) 3/8 (Grade 5) bolts in horizontal portion of the exhaust pipe as close to the turbo exhaust wheel as possible. Bolts to be installed 90 degrees to each other within one inch of each other. (Bone stock turbos do not) (No smoke, does not need an upward exhaust)
10. On-road fuel for Diesel trucks is permitted. Any octane rated gas for gas trucks is permitted. E85 or alcohol is prohibited.
11. Air to air intercoolers only. Aftermarket intercoolers are permitted but must be located in front of radiator. Factory water to air intercoolers are permitted. Aftermarket water to air intercoolers are prohibited.
12. Engine must circulate coolant freely. Radiator must be located in front of engine. Aftermarket radiators permitted.
13. Front suspension must retain full working front suspension. Limiting straps prohibited. Traction bars permitted. Front suspension may be raised or lowered.
14. Rear bump stops permitted. Bump stops must be bolt on only and removable for street use. Traction bars permitted. Rear suspension may be bolted so no travel is present.
15. Tires limited to 35x12.50” tire for single wheel trucks. Tire limited to 35x11.50 wide for duel wheel trucks. Any aftermarket wheels permitted. Dually wheels permitted when accompanied by a dually bed. All tires must be D.O.T. approved. Cutting or altering of tires is prohibited.
16. Any turbo size is permitted.
17. NO deck plate motors, or billet blocks.
17. Air shutoff is required.
18. Tech’s discretion on safety equipment. (If needing more safety, or not safe to pull)
19. All general rules apply.
***All interpretation of these rules lie with the Pull-Off Productions Tech Officials
and their decision is final.***
Credentials: Must be licensed, insured, and street legal. All drivers must have current driver’s license. Vehicles may be 2- or 4-wheel drive. Vehicle may be gas or diesel engine. All pulling vehicles may be held for a pre/post competition inspection. Failure to abide may result in a disqualification.
1. OEM restraint system is mandatory and must be worn. Helmets are Mandatory. No exceptions.
2. Vehicle must retain FULL OEM interior. This includes all seating as designed for cab configuration, full dash, door panels, carpet/vinyl flooring, etc.
3. Ballast is permitted and must be secured in pickup bed only. Front hanging weights is prohibited. Weight in the cab or engine bay is prohibited. 8500 lbs with driver.
4. Body must retain full OEM truck body. Aftermarket hoods permitted. Aftermarket (ranch hand, roll pans, or other) bumpers permitted. Snow plow mounts permitted; snow plow frame prohibited. All headlight assemblies must be installed. Window tint is permitted.
5. Driveline must retain OEM style driveline from one ton truck or less. Planetary axles, dropbox, and/or reverser are prohibited. Driveline components may be swapped between manufacturers. Driveshaft size and material may be upgraded. Drive shaft loops will be recommended. Pull-Off Productions Officials have to the right to tell you if you need drive shaft loops and shields.
6. Engine must have been offered as an OEM engine in a one ton or less truck. Engine can be interchanged between manufactures.
7. Hitch heights are as follows.
20 inch 4x4 diesel or turbo gas
24 inch 4x4 naturally aspirated gas
26 inch 2wd diesel
30 inch 2wd naturally aspirated gas
Hitch is different heights to level out class and attempt to keep everyone competitive. Please be sure you can get it to the correct height. Reese style hitches only. Draw bar style or “trick” hitches prohibited. Hook point must extend beyond the back of bumper/rollpan. Reese hitch must be attached to the frame within ten (10) inches of the end of the frame rails from the rear. Hitch reinforcements must not extend forward of the centerline of the rear axle. Hitch may be bolted or welded for attachment to the frame, Hitch receiver must be welded to the cross member. Shortening of the bed in order to
shorten the hook point is not permitted. NO alteration or modified frame rails. Must be OEM frame rails. Hitch must be stationary in all directions. Clevises are prohibited. Hook loop must be a minimum ¾” x ¾” thick at any point, must be made of steel, and not more than 1.5” X 1.5” at hook point. Final decision of legality of hitch resides with Pull-Off Productions head tech official.
8. Compressed injectables (nitrous, propane, etc.) is prohibited. If caught, banned for a year from the date you were caught.
9. Exhaust MUST point upwards. HOOD STACKS PROHIBITED. NO EXCEPTIONS. If exhaust is exiting under bed side, must have turn up tip to point exhaust upwards. (MUST be a 90 degree elbow stick straight up at least 12-inches minimum) Exhaust must exit after the back of cab. It may exit through the bed (bed stack) or under the bed. Aftermarket exhaust permitted. Exhaust must have (2) 3/8 (Grade 5) bolts in horizontal portion of the exhaust pipe as close to the turbo exhaust wheel as possible. Bolts to be installed 90 degrees to each other within one inch of each other. (Bone stock turbos do not) (No smoke, does not need an upward exhaust)
10. On-road fuel for Diesel trucks is permitted. Any octane rated gas for gas trucks is permitted. E85 or alcohol is prohibited.
11. Air to air intercoolers only. Aftermarket intercoolers are permitted but must be located in front of radiator. Factory water to air intercoolers are permitted. Aftermarket water to air intercoolers are prohibited.
12. Engine must circulate coolant freely. Radiator must be located in front of engine. Aftermarket radiators permitted.
13. Front suspension must retain full working front suspension. Limiting straps prohibited. Traction bars permitted. Front suspension may be raised or lowered.
14. Rear bump stops permitted. Bump stops must be bolt on only and removable for street use. Traction bars permitted. Rear suspension may be bolted so no travel is present.
15. Tires limited to 35x12.50” tire for single wheel trucks. Tire limited to 35x11.50 wide for duel wheel trucks. Any aftermarket wheels permitted. Dually wheels permitted when accompanied by a dually bed. All tires must be D.O.T. approved. Cutting or altering of tires is prohibited.
16. Any turbo size is permitted.
17. NO deck plate motors, or billet blocks.
17. Air shutoff is required.
18. Tech’s discretion on safety equipment. (If needing more safety, or not safe to pull)
19. All general rules apply.
***All interpretation of these rules lie with the Pull-Off Productions Tech Officials
and their decision is final.***
PRO STREET GAS
Engine
1. No Cubic inch Limit
2. Any Aluminum cylinder head Permitted
3. Aluminum Blocks are permitted (Trucks with aluminum blocks must have 100 lbs of weight in the engine bay that is visible to tech inspector)
4. Engine block bust have stock bore spacing
5. Single naturally aspirated carburetor only. No Tunnel Rams or Sheet Metal intakes
6. Any engine allowed with any make body
7. Rear of block must be 12” behind the center of the front axle tube
Suspension/Drivetrain
1. No larger than 1 ton driveline
2. OEM Frame rail only
3. Wheelbase may not exceed 136 inches. Anything over the limit must be the factory wheelbase measurement for the body being used.
4. Suspension may be blocked or solid
5. No hydraulic suspension or air bags
Transfer Case
1. Must be 1-ton or less
2. 205 Quick Change is permitted, will be sealed during tech inspection
3. No Drop box allowed
Hitch
1. Must be rigged in all directions
2. From point of hook to centerline of rear axle shall be no less than 27% wheel base
3. Hitch height may not exceed 26” high & hole in hitch must be 3.75” x 3.0” opening
4. No part of the hitch can exceed further forward than the centerline of the rear axle. Hitch must be 33 degrees or less parallel to the ground.5. Tab must be welded at center of rear end to assist in measuring percentage of wheel base to hook point.
Tires
1. Must be DOT approved 36” x 14.50” MAX
2. MUST HAVE FACTORY TIRE SIZE STAMP FOR VERIFICATION
3. If tire size is removed they will be considered illegal
4. No studded tires, no chains, no altercations allowed
5. No dual tires
Fuel
1. Gasoline/Race Fuel Only
2. No Alcohol
3. No Nitrous
4. No Power adders
5. Fuel tanks may be mounted on front of weight box
Weight
1. 6300 Pounds MAX
2. Hanging weights and brackets may not extend more than 195 inches from the centerline of the rear axle, but Weights may not extend more than 60” from the centerline of the front axle.
3. No weight allowed in cab
4. All weight must be securely fastened
Transmission
1. Must have blow-proof bell housing on truck with standard transmission
2. Automatic transmission must have blow proof blanket
Battery
1. Batteries are not allowed in cab, unless factory installed
2. A Manual Battery Disconnect easily accessible and clearly marked is required.
Body
1. FULL Fiberglass bodies are not permitted
2. Must have a firewall
3. Bed Floor is not required
4. No Flat Beds, Bed must be OEM Appearing
5. If truck doesn't have bed floor, there must be a cover on the bed
6. No mud flaps or dirt deflector
7. Max width of truck is 102"
Brakes
1. Must have front working brakes
Exhaust
1. Open Headers permitted
2. All vehicles must be equipped with upward pointing exhaust out of truck hood, or run under the fender / Downward.
Misc
1. No Traction Control devices allowed
Safety
1. All trucks must have a working kill switch
2. Must have driveshaft loops
3. All fans must be shrouded at least 180 degrees on top
4. All trucks must have a fully functional fire extinguisher in the cab
5. All drivers must wear a full face helmet and fire suit (jacket/pants), leather shoes/boots.
Engine
1. No Cubic inch Limit
2. Any Aluminum cylinder head Permitted
3. Aluminum Blocks are permitted (Trucks with aluminum blocks must have 100 lbs of weight in the engine bay that is visible to tech inspector)
4. Engine block bust have stock bore spacing
5. Single naturally aspirated carburetor only. No Tunnel Rams or Sheet Metal intakes
6. Any engine allowed with any make body
7. Rear of block must be 12” behind the center of the front axle tube
Suspension/Drivetrain
1. No larger than 1 ton driveline
2. OEM Frame rail only
3. Wheelbase may not exceed 136 inches. Anything over the limit must be the factory wheelbase measurement for the body being used.
4. Suspension may be blocked or solid
5. No hydraulic suspension or air bags
Transfer Case
1. Must be 1-ton or less
2. 205 Quick Change is permitted, will be sealed during tech inspection
3. No Drop box allowed
Hitch
1. Must be rigged in all directions
2. From point of hook to centerline of rear axle shall be no less than 27% wheel base
3. Hitch height may not exceed 26” high & hole in hitch must be 3.75” x 3.0” opening
4. No part of the hitch can exceed further forward than the centerline of the rear axle. Hitch must be 33 degrees or less parallel to the ground.5. Tab must be welded at center of rear end to assist in measuring percentage of wheel base to hook point.
Tires
1. Must be DOT approved 36” x 14.50” MAX
2. MUST HAVE FACTORY TIRE SIZE STAMP FOR VERIFICATION
3. If tire size is removed they will be considered illegal
4. No studded tires, no chains, no altercations allowed
5. No dual tires
Fuel
1. Gasoline/Race Fuel Only
2. No Alcohol
3. No Nitrous
4. No Power adders
5. Fuel tanks may be mounted on front of weight box
Weight
1. 6300 Pounds MAX
2. Hanging weights and brackets may not extend more than 195 inches from the centerline of the rear axle, but Weights may not extend more than 60” from the centerline of the front axle.
3. No weight allowed in cab
4. All weight must be securely fastened
Transmission
1. Must have blow-proof bell housing on truck with standard transmission
2. Automatic transmission must have blow proof blanket
Battery
1. Batteries are not allowed in cab, unless factory installed
2. A Manual Battery Disconnect easily accessible and clearly marked is required.
Body
1. FULL Fiberglass bodies are not permitted
2. Must have a firewall
3. Bed Floor is not required
4. No Flat Beds, Bed must be OEM Appearing
5. If truck doesn't have bed floor, there must be a cover on the bed
6. No mud flaps or dirt deflector
7. Max width of truck is 102"
Brakes
1. Must have front working brakes
Exhaust
1. Open Headers permitted
2. All vehicles must be equipped with upward pointing exhaust out of truck hood, or run under the fender / Downward.
Misc
1. No Traction Control devices allowed
Safety
1. All trucks must have a working kill switch
2. Must have driveshaft loops
3. All fans must be shrouded at least 180 degrees on top
4. All trucks must have a fully functional fire extinguisher in the cab
5. All drivers must wear a full face helmet and fire suit (jacket/pants), leather shoes/boots.
2.6 PRO STREET DIESEL 4X4 TRUCKSAdopted: January 2023 (PPL Rules)
USA-EAST Post Event Tech Inspection Pulling vehicles may be held for post competition tech
inspection. Failure to abide may result in a DQ. Top five trucks may be held at the end of track in a
holding area for post pull inspections. It is the driver’s responsibility to be aware of their placing
and be present with the truck post inspecting area.
BODY
The body must be an OEM truck body, the complete OEM floor pan and complete OEM firewall is
mandatory. Beds must be covered. No flatbeds permitted. The body must retain full metal,
aftermarket steel hoods are permitted. They must be closed and securely latched while hooked to
the sled.
● Trucks that have had bed floors removed in the past may install a bed floor and compete with the
following requirements. (This rule does not follow PPL rules and is for USA-EAST events only.)
- Minimum 1/8” thick aluminum or steel welded, bolted, or riveted in place. If the bed floor has
been replaced via the specifications above, the 100 lbs. to be attached over or behind the
centerline of the rear axle.
- Weight must be able to be removed and verified on the scales if requested by officials.
CHASSIS
The OEM chassis is mandatory. The vehicle must retain a full 3/4 or 1-ton size chassis. Wheel tubs,
back-half conversions, tube chassis prohibited. Rigid suspension allowed. Hydraulic steering
permitted. (Intent-no Isuzu or compact diesel chassis)
DRAWBAR
1. Drawbar assembly must be frame mounted. Pivot pin of the drawbar can be no further forward
than the centerline of the rear axle. Minimum of one (1) inch of material around the pivot pin
location (circumference) of the hitch assembly. Hitch assembly requires 1/2” total thickness
minimum (width) where the drawbar pivot pin intersects (connects). Minimum 1/4” wall thickness
tubing material required for drawbar assembly.
2. Maximum drawbar height of 24”.
3. Hook point must be no closer than 44” of center line of rear axle, drawbar must not exceed a
maximum of 25° angle from pivot point to hook point.
4. Drawbar height adjustment link, if attached to the rear-end housing, the attaching point must be
at or below the centerline of the axle. Drawbar adjusters cannot attach to anything above the
centerline of the rear axle.
5. Drawbar adjusters can only go straight downward vertically or towards rear differential housing.
No adjusters permitted above the hook point.6. No slotting of holes for adjuster attachment.
DRIVELINE
1. Drive train will consist of the following; a) OEM differential required. Must have come factory in a
one ton or smaller vehicle. b) OEM transmission and transfer cases must be used. Must have come
factory in a one ton or smaller vehicle. c) Non-OEM transmissions prohibited. Aftermarket torque
convertors, valve bodies, and internal components are permitted.
2. All clutches, bellhousings, and clutch/transmission blankets must meet SFI specs. (See general
rules)
3. Driveshaft shielding, u-joint shields, and axle shields all required. (See driveshaft shielding) 4. No
traction control permitted.
ENGINE
1. Engine must remain in stock location as intended by the manufacturer. Engines may be
interchanged between manufacturers.
2. Front of the engine block can be no further forward than 17” of the centerline of the front axle.
3. Maximum engine size will be 460 cubic inch. Engines must come from the factory in one ton or
smaller diesel pickup trucks. a) No aftermarket blocks permitted; no deck plates permitted. b)
Head must be an OEM or OEM one piece cast replica for that brand engine. No billet heads of any
material. Outside dimensions of the cylinder head must measure factory width and length. Head
must retain OEM valve angle. c) Side draft and aftermarket intake manifolds are allowed.
4. Engine must have cables surrounding the block and head. (See Engines)
5. All engines will have a deflection shield, running the complete length of the block casting. Shield
must be securely fastened and must be .060” thick. (This equates to a steel inner fender)
6. Air to air intercooler only. No ice or water permitted on the truck during competition. ALL ice
MUST be removed before scaling.
7. Water injection is prohibited. All components must be removed from the truck.
FUEL
1. Fuel Systems: Maximum of one P7100 pump (2-5/8”W x 9-9/16”L x 8-3/16”H main pump body),
limited to one plunger per cylinder. The use of multiple high pressure common rail fuel pumps is
allowed. Ford Power Stroke engine may utilize a second HPOP. Electronic Fuel Injection is
permitted. A 3-way dump valve mounted before the injection pump is mandatory which can be
operated by the driver while strapped in the seat.
2. No fuel lines or tanks permitted inside of a truck cab unless securely mounted in a marine box.
3. Fuel limited to diesel fuel. No alcohol, nitrous, propane or any oxygen enhancing agents allowed.
SUSPENSIONSThe upper mounting point for strut assembly must be in factory location. Adjustable caster/camber
pillow ball mounts are permitted. The lower control arm may be strengthened provided the factory
mounting points are maintained. Strut tower braces, lower tie bars, sway bars, and limit straps are
permitted. Traction bars and devices are permitted. Raising or lowering of vehicle height with
suspension modification is permitted but must be bolt-on only. Welds permitted for attachment to
frame and axle only. Blocked suspension permitted. No airbags. Rear suspension may be made
solid. Hydraulic steering permitted
TIRES
Tires must be DOT approved with a maximum size of 35x12.50. No studded tires or tire chains. No
alterations to tires permitted. No bar or terra tires. Dual wheels are prohibited.
TURBOCHARGER/EXHAUST
1. Air shut off (kill switch) required. (See safety switches)
2. Turbocharger is limited to a 2.6” inducer bore, bore must be smooth-faced (no MAP/MWE
ring/groove) with all air entering through the 2.6” opening. Bore will be checked with a 2.605” plug,
plug must not be able to enter the inducer bore and contact the compressor wheel.
3. Compressor wheel must protrude 1/8 inch inside of the opening.
4. Exhaust must exit straight up, Must be equipped with a turbo exhaust containment device. Along
with a turbo blanket on the intake side. (See turbo rules in general rules)
WEIGHTS
Maximum weight 8,000lbs. Front weights must be no more than 60” from the centerline of the front
axle to forward most points and be securely fastened. No weights are allowed in the cab of the
truck. If weights are located in the bed of the truck they are to be securely fastened to the bed of the
truck. WHEELBASE Maximum wheelbase 158 inches. Lengthening of the frame allowed up to 158”.
Longer trucks (158”-172”) must maintain OEM measurements for the body being used
USA-EAST Post Event Tech Inspection Pulling vehicles may be held for post competition tech
inspection. Failure to abide may result in a DQ. Top five trucks may be held at the end of track in a
holding area for post pull inspections. It is the driver’s responsibility to be aware of their placing
and be present with the truck post inspecting area.
BODY
The body must be an OEM truck body, the complete OEM floor pan and complete OEM firewall is
mandatory. Beds must be covered. No flatbeds permitted. The body must retain full metal,
aftermarket steel hoods are permitted. They must be closed and securely latched while hooked to
the sled.
● Trucks that have had bed floors removed in the past may install a bed floor and compete with the
following requirements. (This rule does not follow PPL rules and is for USA-EAST events only.)
- Minimum 1/8” thick aluminum or steel welded, bolted, or riveted in place. If the bed floor has
been replaced via the specifications above, the 100 lbs. to be attached over or behind the
centerline of the rear axle.
- Weight must be able to be removed and verified on the scales if requested by officials.
CHASSIS
The OEM chassis is mandatory. The vehicle must retain a full 3/4 or 1-ton size chassis. Wheel tubs,
back-half conversions, tube chassis prohibited. Rigid suspension allowed. Hydraulic steering
permitted. (Intent-no Isuzu or compact diesel chassis)
DRAWBAR
1. Drawbar assembly must be frame mounted. Pivot pin of the drawbar can be no further forward
than the centerline of the rear axle. Minimum of one (1) inch of material around the pivot pin
location (circumference) of the hitch assembly. Hitch assembly requires 1/2” total thickness
minimum (width) where the drawbar pivot pin intersects (connects). Minimum 1/4” wall thickness
tubing material required for drawbar assembly.
2. Maximum drawbar height of 24”.
3. Hook point must be no closer than 44” of center line of rear axle, drawbar must not exceed a
maximum of 25° angle from pivot point to hook point.
4. Drawbar height adjustment link, if attached to the rear-end housing, the attaching point must be
at or below the centerline of the axle. Drawbar adjusters cannot attach to anything above the
centerline of the rear axle.
5. Drawbar adjusters can only go straight downward vertically or towards rear differential housing.
No adjusters permitted above the hook point.6. No slotting of holes for adjuster attachment.
DRIVELINE
1. Drive train will consist of the following; a) OEM differential required. Must have come factory in a
one ton or smaller vehicle. b) OEM transmission and transfer cases must be used. Must have come
factory in a one ton or smaller vehicle. c) Non-OEM transmissions prohibited. Aftermarket torque
convertors, valve bodies, and internal components are permitted.
2. All clutches, bellhousings, and clutch/transmission blankets must meet SFI specs. (See general
rules)
3. Driveshaft shielding, u-joint shields, and axle shields all required. (See driveshaft shielding) 4. No
traction control permitted.
ENGINE
1. Engine must remain in stock location as intended by the manufacturer. Engines may be
interchanged between manufacturers.
2. Front of the engine block can be no further forward than 17” of the centerline of the front axle.
3. Maximum engine size will be 460 cubic inch. Engines must come from the factory in one ton or
smaller diesel pickup trucks. a) No aftermarket blocks permitted; no deck plates permitted. b)
Head must be an OEM or OEM one piece cast replica for that brand engine. No billet heads of any
material. Outside dimensions of the cylinder head must measure factory width and length. Head
must retain OEM valve angle. c) Side draft and aftermarket intake manifolds are allowed.
4. Engine must have cables surrounding the block and head. (See Engines)
5. All engines will have a deflection shield, running the complete length of the block casting. Shield
must be securely fastened and must be .060” thick. (This equates to a steel inner fender)
6. Air to air intercooler only. No ice or water permitted on the truck during competition. ALL ice
MUST be removed before scaling.
7. Water injection is prohibited. All components must be removed from the truck.
FUEL
1. Fuel Systems: Maximum of one P7100 pump (2-5/8”W x 9-9/16”L x 8-3/16”H main pump body),
limited to one plunger per cylinder. The use of multiple high pressure common rail fuel pumps is
allowed. Ford Power Stroke engine may utilize a second HPOP. Electronic Fuel Injection is
permitted. A 3-way dump valve mounted before the injection pump is mandatory which can be
operated by the driver while strapped in the seat.
2. No fuel lines or tanks permitted inside of a truck cab unless securely mounted in a marine box.
3. Fuel limited to diesel fuel. No alcohol, nitrous, propane or any oxygen enhancing agents allowed.
SUSPENSIONSThe upper mounting point for strut assembly must be in factory location. Adjustable caster/camber
pillow ball mounts are permitted. The lower control arm may be strengthened provided the factory
mounting points are maintained. Strut tower braces, lower tie bars, sway bars, and limit straps are
permitted. Traction bars and devices are permitted. Raising or lowering of vehicle height with
suspension modification is permitted but must be bolt-on only. Welds permitted for attachment to
frame and axle only. Blocked suspension permitted. No airbags. Rear suspension may be made
solid. Hydraulic steering permitted
TIRES
Tires must be DOT approved with a maximum size of 35x12.50. No studded tires or tire chains. No
alterations to tires permitted. No bar or terra tires. Dual wheels are prohibited.
TURBOCHARGER/EXHAUST
1. Air shut off (kill switch) required. (See safety switches)
2. Turbocharger is limited to a 2.6” inducer bore, bore must be smooth-faced (no MAP/MWE
ring/groove) with all air entering through the 2.6” opening. Bore will be checked with a 2.605” plug,
plug must not be able to enter the inducer bore and contact the compressor wheel.
3. Compressor wheel must protrude 1/8 inch inside of the opening.
4. Exhaust must exit straight up, Must be equipped with a turbo exhaust containment device. Along
with a turbo blanket on the intake side. (See turbo rules in general rules)
WEIGHTS
Maximum weight 8,000lbs. Front weights must be no more than 60” from the centerline of the front
axle to forward most points and be securely fastened. No weights are allowed in the cab of the
truck. If weights are located in the bed of the truck they are to be securely fastened to the bed of the
truck. WHEELBASE Maximum wheelbase 158 inches. Lengthening of the frame allowed up to 158”.
Longer trucks (158”-172”) must maintain OEM measurements for the body being used
3.0 LIMITED PRO DIESEL 4X4 TRUCKS
Adopted: January 2023 (PPL Rules)
USA-EAST Post Event Tech Inspection Pulling vehicles may be held for post competition tech
inspection. Failure to abide may result in a DQ. The top five trucks may be held at the end of track in
a holding area for post pull inspections. It is the driver’s responsibility to be aware of their placing
and be present with the truck post inspecting area.
BODY The body must be an OEM truck body. Beds must be covered. No flatbeds permitted. The
body must retain full metal, aftermarket steel hoods are permitted. They must be closed and
securely latched while hooked to the sled.
CHASSIS The OEM chassis is mandatory. The vehicle must retain a full 3/4 or 1-ton size chassis.
Wheel tubs, back-half conversions, tube chassis prohibited. Rigid suspension allowed. Hydraulic
steering permitted. (Intent-no Isuzu or compact diesel chassis)
DRAWBAR
1. Drawbar assembly must be frame mounted. Pivot pin of the drawbar can be no further forward
than the centerline of the rear axle. Minimum of one (1) inch of material around the pivot pin
location (circumference) of the hitch assembly. Hitch assembly requires 1/2” total thickness
minimum (width) where the drawbar pivot pin intersects (connects). Minimum 1/4” wall thickness
tubing material required for drawbar assembly.
2. Maximum drawbar height of 26”.
3. Hook point must be no closer than 44” of center line of rear axle, drawbar must not exceed a
maximum of 25° angle from pivot point to hook point.
4. Drawbar height adjustment link, if attached to the rear-end housing, the attaching point must be
at or below the centerline of the axle. Drawbar adjusters cannot attach to anything above the
centerline of the rear axle.
5. Drawbar adjusters can only go straight downward vertically or towards rear differential housing.
No adjusters permitted above the hook point.
6. No slotting of holes for adjuster attachment.
DRIVELINE
1. Drive train will consist of the following: Any front axle, any transfer case and any rear axle. No
planetaries permitted.
2. All clutches, bellhousings, and clutch/transmission blankets must meet SFI specs. (See general
rules)
3. Driveshaft shielding, u-joint shields, and axle shields are all required. (See driveshaft shielding)
4. No traction control permitted.ENGINE
1. Engine must remain in stock location as intended by the manufacturer. Engines may be
interchanged between manufacturers.
2. Front of the engine block can be no further forward than 17” of the centerline of the front axle.
3. Maximum engine size will be 460 cubic inch. Engines must come from the factory in one ton or
smaller diesel pickup trucks. a) No aftermarket blocks permitted b) Head must be an OEM or OEM
one piece cast replica for that brand engine. No billet heads of any material. Outside dimensions of
the cylinder head must measure factory width and length. Head must retain OEM valve angle.
4. Engine must have cables surrounding the block and head. (See Engines)
5. All engines will have a deflection shield, running the complete length of the block casting. Shield
must be securely fastened and must be .060” thick. (This equates to a steel inner fender)
6. Intercoolers allowed. Dumping or draining intercoolers without a catch pan within 100 feet of the
competition track is prohibited.
7. Water injection is prohibited. All components must be removed from the truck.
FUEL
1. Fuel Systems: Maximum of one P7100 pump (2-5/8”W x 9-9/16”L x 8-3/16”H main pump body),
limited to one plunger per cylinder. The use of multiple high pressure common rail fuel pumps is
allowed. Ford Power Stroke engine may utilize a second HPOP. Electronic fuel injection is
permitted. A 3-way dump valve mounted before the injection pump is mandatory which can be
operated by the driver while strapped in the seat.
2. No fuel lines or tanks permitted inside of a truck cab unless securely mounted in a marine box.
3. Fuel limited to diesel fuel. No alcohol, nitrous, propane or any oxygen enhancing agents allowed.
TIRES Must run DOT approved tires. Maximum tire height 35”, no studded tires or chains. No
alteration to DOT tires allowed. Dual rear wheels are permitted on the rear axle only. Maximum of 6
tires.
TURBOCHARGER/EXHAUST
1. Air shut off (kill switch) required. (See safety switches)
2. Turbocharger is limited to a 3.0” inducer bore, bore must be smooth-faced (no MAP/MWE
ring/groove) with all air entering through the 3.0” opening. Bore will be checked with a 3.005” plug,
plug must not be able to enter the inducer bore and contact the compressor wheel.
3. Compressor wheel must protrude 1/8 inch inside of the opening.
4. Exhaust must exit straight up, Must be equipped with a turbo exhaust containment device. Along
with a turbo blanket on the intake side. (See turbo rules in general rules)WEIGHTS
Maximum weight 8,000lbs. (Dry weight 7900# for ice allowance at scales.) Front weights must be
no more than 60” from the centerline of the front axle to forward most points and be securely
fastened. No weights are allowed in the cab of the truck. If weights are located in the bed of the
truck they are to be securely fastened to the bed of the truck. WHEELBASE Maximum wheelbase
158” and 102” maximum width. (outside tire to outside tire)
Adopted: January 2023 (PPL Rules)
USA-EAST Post Event Tech Inspection Pulling vehicles may be held for post competition tech
inspection. Failure to abide may result in a DQ. The top five trucks may be held at the end of track in
a holding area for post pull inspections. It is the driver’s responsibility to be aware of their placing
and be present with the truck post inspecting area.
BODY The body must be an OEM truck body. Beds must be covered. No flatbeds permitted. The
body must retain full metal, aftermarket steel hoods are permitted. They must be closed and
securely latched while hooked to the sled.
CHASSIS The OEM chassis is mandatory. The vehicle must retain a full 3/4 or 1-ton size chassis.
Wheel tubs, back-half conversions, tube chassis prohibited. Rigid suspension allowed. Hydraulic
steering permitted. (Intent-no Isuzu or compact diesel chassis)
DRAWBAR
1. Drawbar assembly must be frame mounted. Pivot pin of the drawbar can be no further forward
than the centerline of the rear axle. Minimum of one (1) inch of material around the pivot pin
location (circumference) of the hitch assembly. Hitch assembly requires 1/2” total thickness
minimum (width) where the drawbar pivot pin intersects (connects). Minimum 1/4” wall thickness
tubing material required for drawbar assembly.
2. Maximum drawbar height of 26”.
3. Hook point must be no closer than 44” of center line of rear axle, drawbar must not exceed a
maximum of 25° angle from pivot point to hook point.
4. Drawbar height adjustment link, if attached to the rear-end housing, the attaching point must be
at or below the centerline of the axle. Drawbar adjusters cannot attach to anything above the
centerline of the rear axle.
5. Drawbar adjusters can only go straight downward vertically or towards rear differential housing.
No adjusters permitted above the hook point.
6. No slotting of holes for adjuster attachment.
DRIVELINE
1. Drive train will consist of the following: Any front axle, any transfer case and any rear axle. No
planetaries permitted.
2. All clutches, bellhousings, and clutch/transmission blankets must meet SFI specs. (See general
rules)
3. Driveshaft shielding, u-joint shields, and axle shields are all required. (See driveshaft shielding)
4. No traction control permitted.ENGINE
1. Engine must remain in stock location as intended by the manufacturer. Engines may be
interchanged between manufacturers.
2. Front of the engine block can be no further forward than 17” of the centerline of the front axle.
3. Maximum engine size will be 460 cubic inch. Engines must come from the factory in one ton or
smaller diesel pickup trucks. a) No aftermarket blocks permitted b) Head must be an OEM or OEM
one piece cast replica for that brand engine. No billet heads of any material. Outside dimensions of
the cylinder head must measure factory width and length. Head must retain OEM valve angle.
4. Engine must have cables surrounding the block and head. (See Engines)
5. All engines will have a deflection shield, running the complete length of the block casting. Shield
must be securely fastened and must be .060” thick. (This equates to a steel inner fender)
6. Intercoolers allowed. Dumping or draining intercoolers without a catch pan within 100 feet of the
competition track is prohibited.
7. Water injection is prohibited. All components must be removed from the truck.
FUEL
1. Fuel Systems: Maximum of one P7100 pump (2-5/8”W x 9-9/16”L x 8-3/16”H main pump body),
limited to one plunger per cylinder. The use of multiple high pressure common rail fuel pumps is
allowed. Ford Power Stroke engine may utilize a second HPOP. Electronic fuel injection is
permitted. A 3-way dump valve mounted before the injection pump is mandatory which can be
operated by the driver while strapped in the seat.
2. No fuel lines or tanks permitted inside of a truck cab unless securely mounted in a marine box.
3. Fuel limited to diesel fuel. No alcohol, nitrous, propane or any oxygen enhancing agents allowed.
TIRES Must run DOT approved tires. Maximum tire height 35”, no studded tires or chains. No
alteration to DOT tires allowed. Dual rear wheels are permitted on the rear axle only. Maximum of 6
tires.
TURBOCHARGER/EXHAUST
1. Air shut off (kill switch) required. (See safety switches)
2. Turbocharger is limited to a 3.0” inducer bore, bore must be smooth-faced (no MAP/MWE
ring/groove) with all air entering through the 3.0” opening. Bore will be checked with a 3.005” plug,
plug must not be able to enter the inducer bore and contact the compressor wheel.
3. Compressor wheel must protrude 1/8 inch inside of the opening.
4. Exhaust must exit straight up, Must be equipped with a turbo exhaust containment device. Along
with a turbo blanket on the intake side. (See turbo rules in general rules)WEIGHTS
Maximum weight 8,000lbs. (Dry weight 7900# for ice allowance at scales.) Front weights must be
no more than 60” from the centerline of the front axle to forward most points and be securely
fastened. No weights are allowed in the cab of the truck. If weights are located in the bed of the
truck they are to be securely fastened to the bed of the truck. WHEELBASE Maximum wheelbase
158” and 102” maximum width. (outside tire to outside tire)
Stock Appearing Street Trucks - “KING of the Street”
Credentials: Must be licensed, insured, and street legal. All drivers must have current
driver’s license. Vehicles may be 2- or 4-wheel drive. All pulling vehicles may be held for
a pre/post competition inspection. Failure to abide may result in a disqualification.
Trucks that regularly compete in Wild Street/2.6 Diesel classes are not eligible for this
class. Any truck that dominates MAY be moved up a class by officials.
1. OEM restraint system is mandatory and must be worn. Must have shirt, long pants, and
closed toed shoes during competition. Helmet is strongly recommended.
2. Vehicle must retain FULL OEM interior. This includes all seating as designed for cab
configuration, full dash, door panels, carpet/vinyl flooring, etc.
3. Ballast is permitted and must be secured in pickup bed only. Front hanging weights is
prohibited. Weight in the cab or engine bay is prohibited. 8500 lbs with driver.
4. Body must retain full OEM truck body. Aftermarket hoods permitted. Aftermarket (ranch
hand, roll pans, or other) bumpers permitted. Snowplow mounts permitted; snowplow frame
prohibited. All headlight assemblies must be installed. Window tint is permitted. LIGHTS MUST
BE TURNED OFF DURING PULLING, exterior lights may be on.
5. Driveline must retain OEM style driveline from one ton truck or less. Planetary axles,
dropbox, and/or reverser are prohibited. Driveline components may be swapped between
manufacturers. Driveshaft size and material may be upgraded. Drive shaft loops will be
recommended. Pull-Off Productions Officials have the right to tell you if you need drive-shaft
loops and shields.
6. Engine must have been offered as an OEM engine in a one ton or less truck. Engine can be
interchanged between manufacturers.
7. Hitch heights 24 inch 4x4 diesel
Please be sure you can get it to the correct height. Reese style hitches only. Draw bar style or
“trick” hitches prohibited. Hook point must extend beyond the back of bumper/rollpan. Hitch
must be stationary in all directions. Clevises are prohibited. Hook loop must be a minimum ¾”
x ¾” thick at any point, must be made of steel, and not more than 1.5” X 1.5” at hook point.
Final decision of legality of hitch resides with Pull-Off Productions head tech official.8. Compressed injectables (nitrous, propane, etc.) are prohibited.
9. Exhaust must exit behind the cab. Stacks exiting through the hood or fender well are
prohibited. Exhaust must be directed in an upward position.
10. One factory appearing fuel injection pump.
11. The fuel must be pump #1/#2 diesel only. Stock fuel. NITROUS OXIDE is prohibited along
with other oxygen extenders as well as the use of PROPANE is also prohibited. All system
components MUST be removed from the truck. Fuel tanks must be OEM and in the factory
location. Fuel cells are permitted as long as they are not located in the drivers compartment.
12. Air to air intercoolers only. Aftermarket intercoolers are permitted but must be located in
front of radiator. Factory water to air intercoolers are permitted. Aftermarket water to air
intercoolers are prohibited.
13. Engine must circulate coolant freely. Radiator must be located in front of engine.
Aftermarket radiators permitted.
14. Front suspension must retain full working front suspension. Limiting straps prohibited.
Traction bars permitted. Front suspension may be raised or lowered.
15. Rear bump stops permitted. Bump stops must be bolt on only and removable for street use.
Traction bars permitted. Rear suspension may be bolted so no travel is present.
16. Tires limited to 35x12.50” tire for single wheel trucks. Tire limited to 35x11.50 wide for duel
wheel trucks. Any aftermarket wheels permitted. Dually wheels permitted when accompanied
by a dually bed. All tires must be D.O.T. approved. Cutting or altering of tires is prohibited.
17. TURBOCHARGER
A. Stock OEM/Factory appearing turbo for that model.
B. Competitors must make provisions at tech officials’ request to allow complete inspection of
the compressor wheel and housing. Failure to comply with the request will result in
disqualification and banishment until the turbo is re-inspected
18. Tech’s discretion on safety equipment. (If needing more safety, or not safe to pull)
19. All general rules apply.
***All interpretation of these rules lie with the Pull-Off Productions Tech Officials and
their decision is final.***
Credentials: Must be licensed, insured, and street legal. All drivers must have current
driver’s license. Vehicles may be 2- or 4-wheel drive. All pulling vehicles may be held for
a pre/post competition inspection. Failure to abide may result in a disqualification.
Trucks that regularly compete in Wild Street/2.6 Diesel classes are not eligible for this
class. Any truck that dominates MAY be moved up a class by officials.
1. OEM restraint system is mandatory and must be worn. Must have shirt, long pants, and
closed toed shoes during competition. Helmet is strongly recommended.
2. Vehicle must retain FULL OEM interior. This includes all seating as designed for cab
configuration, full dash, door panels, carpet/vinyl flooring, etc.
3. Ballast is permitted and must be secured in pickup bed only. Front hanging weights is
prohibited. Weight in the cab or engine bay is prohibited. 8500 lbs with driver.
4. Body must retain full OEM truck body. Aftermarket hoods permitted. Aftermarket (ranch
hand, roll pans, or other) bumpers permitted. Snowplow mounts permitted; snowplow frame
prohibited. All headlight assemblies must be installed. Window tint is permitted. LIGHTS MUST
BE TURNED OFF DURING PULLING, exterior lights may be on.
5. Driveline must retain OEM style driveline from one ton truck or less. Planetary axles,
dropbox, and/or reverser are prohibited. Driveline components may be swapped between
manufacturers. Driveshaft size and material may be upgraded. Drive shaft loops will be
recommended. Pull-Off Productions Officials have the right to tell you if you need drive-shaft
loops and shields.
6. Engine must have been offered as an OEM engine in a one ton or less truck. Engine can be
interchanged between manufacturers.
7. Hitch heights 24 inch 4x4 diesel
Please be sure you can get it to the correct height. Reese style hitches only. Draw bar style or
“trick” hitches prohibited. Hook point must extend beyond the back of bumper/rollpan. Hitch
must be stationary in all directions. Clevises are prohibited. Hook loop must be a minimum ¾”
x ¾” thick at any point, must be made of steel, and not more than 1.5” X 1.5” at hook point.
Final decision of legality of hitch resides with Pull-Off Productions head tech official.8. Compressed injectables (nitrous, propane, etc.) are prohibited.
9. Exhaust must exit behind the cab. Stacks exiting through the hood or fender well are
prohibited. Exhaust must be directed in an upward position.
10. One factory appearing fuel injection pump.
11. The fuel must be pump #1/#2 diesel only. Stock fuel. NITROUS OXIDE is prohibited along
with other oxygen extenders as well as the use of PROPANE is also prohibited. All system
components MUST be removed from the truck. Fuel tanks must be OEM and in the factory
location. Fuel cells are permitted as long as they are not located in the drivers compartment.
12. Air to air intercoolers only. Aftermarket intercoolers are permitted but must be located in
front of radiator. Factory water to air intercoolers are permitted. Aftermarket water to air
intercoolers are prohibited.
13. Engine must circulate coolant freely. Radiator must be located in front of engine.
Aftermarket radiators permitted.
14. Front suspension must retain full working front suspension. Limiting straps prohibited.
Traction bars permitted. Front suspension may be raised or lowered.
15. Rear bump stops permitted. Bump stops must be bolt on only and removable for street use.
Traction bars permitted. Rear suspension may be bolted so no travel is present.
16. Tires limited to 35x12.50” tire for single wheel trucks. Tire limited to 35x11.50 wide for duel
wheel trucks. Any aftermarket wheels permitted. Dually wheels permitted when accompanied
by a dually bed. All tires must be D.O.T. approved. Cutting or altering of tires is prohibited.
17. TURBOCHARGER
A. Stock OEM/Factory appearing turbo for that model.
B. Competitors must make provisions at tech officials’ request to allow complete inspection of
the compressor wheel and housing. Failure to comply with the request will result in
disqualification and banishment until the turbo is re-inspected
18. Tech’s discretion on safety equipment. (If needing more safety, or not safe to pull)
19. All general rules apply.
***All interpretation of these rules lie with the Pull-Off Productions Tech Officials and
their decision is final.***
7,800 Street Gas Trucks
6,200 Modified Street Gas
- Truck must be registered insured and inspected. Proof is required
- Hanging weight is permitted but not more than 60” to the front of the weights or weight box from the center line of the axle. Weight must be secured in a box or strapped on the weight bracket.
- Battery must be securely mounted
- Truck must be stock appearing meaning no body modifications are permitted. (Full bed, full cab, including all bumpers). Wood boxes or flat beds allowed. Bumpers can be cut for access to the hitch or clevis.
- Hitch must be no more than 26 inches high and will be measured to the center point of the hook point. Hitches must be reese style hitches and close to factory position on the rear of the truck.
- Headers are permitted but must have an exhaust with mufflers no open headers!
- Pump gas or race fuel is allowed.
- Engines must be in stock location of the vehicle.
- Transmission and transfer case must be of OEM type.
- Rears must be one ton or smaller.
- Must have OEM steering components (no hydraulic steering allowed)
- Traction bars are allowed and suspension must have at least 1 inch of travel.
6,300 PRO STREET GAS
Engine
1. No Cubic inch Limit
2. Any Aluminum cylinder head Permitted
3. Aluminum Blocks are permitted (Trucks with aluminum blocks must have 100
lbs of weight in the engine bay that is visible to tech inspector)
4. Engine block bust have stock bore spacing
5. Single naturally aspirated carburetor only. No Tunnel Rams or Sheet Metal
intakes
6. Any engine allowed with any make body
7. Rear of block must be 12” behind the center of the front axle tube
Suspension/Drivetrain
1. No larger than 1 ton driveline
2. OEM Frame rail only
3. Wheelbase may not exceed 136 inches. Anything over the limit must be
the factory wheelbase measurement for the body being used.
4. Suspension may be blocked or solid
5. No hydraulic suspension or air bags
Transfer Case
1. Must be 1-ton or less
2. 205 Quick Change is permitted, will be sealed during tech inspection
3. No Drop box allowed
Hitch
1. Must be rigged in all directions
2. From point of hook to centerline of rear axle shall be no less than 27%
wheel base
3. Hitch height may not exceed 26” high & hole in hitch must be 3.75” x 3.0”
opening
4. No part of the hitch can exceed further forward than the centerline of the
rear axle. Hitch must be 33 degrees or less parallel to the ground.5. Tab must be welded at center of rear end to assist in measuring
percentage of wheel base to hook point.
Tires
1. Must be DOT approved 36” x 14.50” MAX
2. MUST HAVE FACTORY TIRE SIZE STAMP FOR VERIFICATION
3. If tire size is removed they will be considered illegal
4. No studded tires, no chains, no altercations allowed
5. No dual tires
Fuel
1. Gasoline/Race Fuel Only
2. No Alcohol
3. No Nitrous
4. No Power adders
5. Fuel tanks may be mounted on front of weight box
Weight
1. 6300 Pounds MAX
2. Hanging weights and brackets may not extend more than 195 inches from
the centerline of the rear axle, but Weights may not extend more than 60”
from the centerline of the front axle.
3. No weight allowed in cab
4. All weight must be securely fastened
Transmission
1. Must have blow-proof bell housing on truck with standard transmission
2. Automatic transmission must have blow proof blanket
Battery
1. Batteries are not allowed in cab, unless factory installed
2. A Manual Battery Disconnect easily accessible and clearly marked is
required.Body
1. FULL Fiberglass bodies are not permitted
2. Must have a firewall
3. Bed Floor is not required
4. No Flat Beds, Bed must be OEM Appearing
5. If truck doesn't have bed floor, there must be a cover on the bed
6. No mud flaps or dirt deflector
7. Max width of truck is 102"
Brakes
1. Must have front working brakes
Exhaust
1. Open Headers permitted
2. All vehicles must be equipped with upward pointing exhaust out of truck
hood, or run under the fender / Downward.
Misc
1. No Traction Control devices allowed
Safety
1. All trucks must have a working kill switch
2. Must have driveshaft loops
3. All fans must be shrouded at least 180 degrees on top
4. All trucks must have a fully functional fire extinguisher in the cab
5. All drivers must wear a full face helmet and fire suit (jacket/pants), leather
shoes/boots.
Engine
1. No Cubic inch Limit
2. Any Aluminum cylinder head Permitted
3. Aluminum Blocks are permitted (Trucks with aluminum blocks must have 100
lbs of weight in the engine bay that is visible to tech inspector)
4. Engine block bust have stock bore spacing
5. Single naturally aspirated carburetor only. No Tunnel Rams or Sheet Metal
intakes
6. Any engine allowed with any make body
7. Rear of block must be 12” behind the center of the front axle tube
Suspension/Drivetrain
1. No larger than 1 ton driveline
2. OEM Frame rail only
3. Wheelbase may not exceed 136 inches. Anything over the limit must be
the factory wheelbase measurement for the body being used.
4. Suspension may be blocked or solid
5. No hydraulic suspension or air bags
Transfer Case
1. Must be 1-ton or less
2. 205 Quick Change is permitted, will be sealed during tech inspection
3. No Drop box allowed
Hitch
1. Must be rigged in all directions
2. From point of hook to centerline of rear axle shall be no less than 27%
wheel base
3. Hitch height may not exceed 26” high & hole in hitch must be 3.75” x 3.0”
opening
4. No part of the hitch can exceed further forward than the centerline of the
rear axle. Hitch must be 33 degrees or less parallel to the ground.5. Tab must be welded at center of rear end to assist in measuring
percentage of wheel base to hook point.
Tires
1. Must be DOT approved 36” x 14.50” MAX
2. MUST HAVE FACTORY TIRE SIZE STAMP FOR VERIFICATION
3. If tire size is removed they will be considered illegal
4. No studded tires, no chains, no altercations allowed
5. No dual tires
Fuel
1. Gasoline/Race Fuel Only
2. No Alcohol
3. No Nitrous
4. No Power adders
5. Fuel tanks may be mounted on front of weight box
Weight
1. 6300 Pounds MAX
2. Hanging weights and brackets may not extend more than 195 inches from
the centerline of the rear axle, but Weights may not extend more than 60”
from the centerline of the front axle.
3. No weight allowed in cab
4. All weight must be securely fastened
Transmission
1. Must have blow-proof bell housing on truck with standard transmission
2. Automatic transmission must have blow proof blanket
Battery
1. Batteries are not allowed in cab, unless factory installed
2. A Manual Battery Disconnect easily accessible and clearly marked is
required.Body
1. FULL Fiberglass bodies are not permitted
2. Must have a firewall
3. Bed Floor is not required
4. No Flat Beds, Bed must be OEM Appearing
5. If truck doesn't have bed floor, there must be a cover on the bed
6. No mud flaps or dirt deflector
7. Max width of truck is 102"
Brakes
1. Must have front working brakes
Exhaust
1. Open Headers permitted
2. All vehicles must be equipped with upward pointing exhaust out of truck
hood, or run under the fender / Downward.
Misc
1. No Traction Control devices allowed
Safety
1. All trucks must have a working kill switch
2. Must have driveshaft loops
3. All fans must be shrouded at least 180 degrees on top
4. All trucks must have a fully functional fire extinguisher in the cab
5. All drivers must wear a full face helmet and fire suit (jacket/pants), leather
shoes/boots.
10,000 Open (Modified/Tractors)
King of the Farm
1. Weight: 12,000lb
2. 16 MPH (16.1 mph will result in a DQ) Speed board will be required at the event with this class
3. 3,000 RPM. (Any tractor found to be over the allowed RPM limit will be disqualified.) Tractor must
have an ISSPRO single magnetic pickup attached to the front of the engine to measure engine RPM’s. The
lead from the pickup to the rear of the tractor is to be made of 14-16 gauge wire attached to a 110V, 3-
prong female electrical outlet. The 2 wires from the pickup need to be attached to the 2 main spades,
not the ground spade, of the electrical outlet. This outlet receptacle needs to be mounted next to the
rear mounted air shutoff cable. Wire must be one continuous wire that is visible with no splices. If you
compete at sanctioned events with Pull-Off Productions, this system must be attached and in working
order.
4. No cubic inch limit
5. Wide Front end only
6. Side Shields
7. Roll Bar or Cage
8. DOT Helmet
9. Ag Tires only. Sizes 18.4 / 20.8 - 38 or 42 only (no cut tires)
10. Air Shut Off required
11. Tractor must have an operator controlled fuel shut-off valve (not the injection pump shut-off).
12. Wheelie Bars Required. ( See general rules for)
13. Turbo size 2.8 (T-4 base)
14. Seat belt Required. (Five-point harness and helmet required with a roll cage)
15. Driver must wear long pants and leather work shoes.
16. Cross bolts (2 – 3/8’’ grade 5) 90 degrees to each other as close as possible to turbo flange, or
exhaust wheel cage in the exhaust.
17. Stock Wheelbase
18. Chassis rules follow Ag stock chassis, engine and frame configuration.
19. Steel flywheel or MUST have a clutch blanket. (Steel flywheel will be MANDATORY in 2026)
20. Drawbar height 20” maximum. Drawbar length no shorter than 18” from center of rear axle. Drawbar
must be rigid with no movement allowed. (No vertical hitches or clevis allowed). Built pulling hitches are
allowed.
21. No weights passed the rear tires
22. Motor driven fans must be shrouded.
23. No water injection, No intercoolers
24. Newer Electronic tractors allowed as long as they meet all other rules.
25. Minimum Age for this class 16
26. Points will be rewarded to all pullers signed up. Tractor must be at the pull to receive points. If
tractor is DQ’ed for speed, out of bounce, or lose of weight, they will receive LAST place points and can
not use that hook as a drop hook. If tractor is DQ’ed for RPM’s, illegal equipment, overweight, hitch, etc.,
they will receive ZERO points. One drop hook will be given at the end of the season and will be used on
the lowest points hook weather it’s a 0 or 40, but can’t use a drop hook to go to another pull. (Any DQ
can NOT be used as a drop hook).
27. Pull-Off Productions reserves the right to make any changes to these rules.
28. Rules will be in place for 3 years. (Next rule meeting will be for the 2028 season)
1. Weight: 12,000lb
2. 16 MPH (16.1 mph will result in a DQ) Speed board will be required at the event with this class
3. 3,000 RPM. (Any tractor found to be over the allowed RPM limit will be disqualified.) Tractor must
have an ISSPRO single magnetic pickup attached to the front of the engine to measure engine RPM’s. The
lead from the pickup to the rear of the tractor is to be made of 14-16 gauge wire attached to a 110V, 3-
prong female electrical outlet. The 2 wires from the pickup need to be attached to the 2 main spades,
not the ground spade, of the electrical outlet. This outlet receptacle needs to be mounted next to the
rear mounted air shutoff cable. Wire must be one continuous wire that is visible with no splices. If you
compete at sanctioned events with Pull-Off Productions, this system must be attached and in working
order.
4. No cubic inch limit
5. Wide Front end only
6. Side Shields
7. Roll Bar or Cage
8. DOT Helmet
9. Ag Tires only. Sizes 18.4 / 20.8 - 38 or 42 only (no cut tires)
10. Air Shut Off required
11. Tractor must have an operator controlled fuel shut-off valve (not the injection pump shut-off).
12. Wheelie Bars Required. ( See general rules for)
13. Turbo size 2.8 (T-4 base)
14. Seat belt Required. (Five-point harness and helmet required with a roll cage)
15. Driver must wear long pants and leather work shoes.
16. Cross bolts (2 – 3/8’’ grade 5) 90 degrees to each other as close as possible to turbo flange, or
exhaust wheel cage in the exhaust.
17. Stock Wheelbase
18. Chassis rules follow Ag stock chassis, engine and frame configuration.
19. Steel flywheel or MUST have a clutch blanket. (Steel flywheel will be MANDATORY in 2026)
20. Drawbar height 20” maximum. Drawbar length no shorter than 18” from center of rear axle. Drawbar
must be rigid with no movement allowed. (No vertical hitches or clevis allowed). Built pulling hitches are
allowed.
21. No weights passed the rear tires
22. Motor driven fans must be shrouded.
23. No water injection, No intercoolers
24. Newer Electronic tractors allowed as long as they meet all other rules.
25. Minimum Age for this class 16
26. Points will be rewarded to all pullers signed up. Tractor must be at the pull to receive points. If
tractor is DQ’ed for speed, out of bounce, or lose of weight, they will receive LAST place points and can
not use that hook as a drop hook. If tractor is DQ’ed for RPM’s, illegal equipment, overweight, hitch, etc.,
they will receive ZERO points. One drop hook will be given at the end of the season and will be used on
the lowest points hook weather it’s a 0 or 40, but can’t use a drop hook to go to another pull. (Any DQ
can NOT be used as a drop hook).
27. Pull-Off Productions reserves the right to make any changes to these rules.
28. Rules will be in place for 3 years. (Next rule meeting will be for the 2028 season)
“STREET STOCK” SEMI TRUCKS
Adopted: January 2023
This class is for STREET LEGAL, LICENSED semi-trucks. Any truck that dominates in the class may
be handicapped or may be moved up a class. This is truly an OPEN class for all working-class semi-
trucks, but it is NOT a PURE STOCK class. There may be other “local fair” rules imposed on this
class at certain events.
LEGALITY OF ENTRY
All entries must be a Street Licensed Semi Truck. The owner must furnish a current registration
card for the vehicle at the time of registration and the driver must have a valid CDL license. Truck
must be capable of pulling a trailer on the highway. All trucks must be driven to the pulls, no
exceptions. These rules may be altered or changed at any time throughout the season for anything
that becomes a safety issue.
SAFETY CONSIDERATIONS
No riders are permitted in trucks during pull attempts. Driver may not leave the driver's seat while
the vehicle is on the pulling track. Driver will take all directions from the flagman on the track.
Drivers must use a seatbelt and/or shoulder harness when hooked to the sled. All trucks must have
a fire extinguisher per USA-EAST general rules.
AIR BAGS/AXLES
1. Only tandem drive axle semi-trucks will be permitted to compete. Tandem axle spacing must be
between 60” and 52”. No front wheel drive will be permitted. No single axle trucks. No dump
trucks. No specialty trucks (well-drilling, wreckers, boom trucks, etc.) will be permitted to
compete.
2. On a trial basis for 2023, trucks with airbag lift axles will be permitted but must put down
pressure on the axle. All tires must remain in contact with the pulling surface at all times while
hooked to the sled.
3. There must be 66” from the center of the tandems to the first obstruction forward such as the
back of the truck cab, toolbox, wet line box, etc.
4. The use of air bags is permitted. However, no air may be added to or removed from the air bags
while the truck is hooked to the weight transfer machine.
5. The height of the hitch must remain the same from start to finish. Any change in the hitch height
will be cause for disqualification.
6. All air bags will be fully inflated and then the hitch height will be set.ENGINE AND TRANSMISSION
1. Maximum RPM limit of 2,500.
2. Water injection in any form is not permitted. Air to air intercooler only. No ice or water permitted
on the truck during competition. An OEM equipped; liquid cooled aftercooler is permitted.
3. No ether, alcohol, nitrous or other combustible (propellant) liquid or combustible material may
be injected into the turbocharger or any part of the air intake system.
4. Turbos are limited to single O.E.M. Turbocharger with an O.E.M 3.2-inch (82mm) maximum
inducer bore on the atmosphere turbo with O.E.M factory exhaust wheels. The bore will be
measured using a 3.2-inch slug. Compressor wheel must protrude 1/8 inch into the 3.6 bore. Map
width enhancement of .180” maximum is permitted which must be in the O.E.M. location, (no
forward facing MWE groove). Any cut, notched, or etc. turbo wheels/blades will result in a
disqualification. Turbo housing must be unaltered OEM/ Factory with no provision made for extra
air ow and/or machining to allow larger turbo wheels in the housing. No bushing of the inducer is
permitted. It is the responsibility of the driver to make the inlet of the turbo accessible for
inspection, a USA-EAST seal will be placed on the compressor housing for future reference. If the
seal us in place and undamaged, no turbo inspection is required. Failure to allow for turbo
inspection will result in immediate disqualification. Any truck disqualified for this reason will be
required to undergo a complete super tech prior to any further competition. Absolutely no refunds
for any illegal turbo found after the class has pulled. Exceptions;
a) A factory 2005-2009 & 2011 CAT twin turbo engine is permitted with the factory-installed non-
altered turbos.
b) Detroit Diesel two-cycle engines may utilize one turbocharger per bank, single-staged only. Must
be OEM stock Air Research or equivalent aftermarket turbo.
c) Cummins KT 600 model engines must retain stock turbo and stock wheel.
5. All exhaust must exit behind the driver’s compartment (no hood stacks permitted) and must exit
vertically. (Turnout, bull hauler, aussie, etc. stack tips are permitted).
6. Transmissions and rear ends must be commercial semi-truck factory components.
7. Only mechanically activated clutches are permitted. (Hydraulic assists are permitted)
ELECTRONIC FUEL INJECTION SYSTEMS/FUEL INJECTION PUMPS
1. Alteration/modification/replacement of the (OEM) original factory fuel pump is not permitted. No
pump may be modified with Sigma parts. No Billet fuel pumps.
2. A Cummins engine must have a Cummins fuel pump - A Detroit must have a Detroit fuel pump –
A Cat must have a cat fuel pump.
3. No sigma pumps OR MW pumps are permitted. Normal pump diesel is the only fuel permitted in
this class.HITCHES
1. Trucks that compete regularly are required to have their own hitching device that is subject to
approval by the head tech official at each event. This hitch must work from the 5th wheel with the
5th wheel centered between the two rear axles. The hitch must be adjustable so that the height
from the ground to the point of hook is between 20” and 16” + or – 1”. The promoter will provide
hitches at each event. The hitch will be measured when the truck weighs in AND immediately
before the semi hooks to the sled.
2. Centerline of the rear axle to hook point on the semi hitch must be no greater than 7 feet.
3. Fifth Wheel Position- Kingpin/Fifth wheel plate position no further forward then the center of the
front axle and no further back then center between the two axles.
TIRES
1. All tires must be road use approved tires and available to the public. Dual wheels and dual tires
must be used on the rear axles. No chains or cables permitted. No cutting of tires is permitted.
Maximum tire size limited to; 11x24.5 x 8.25 (or) 10 x 22 x 8.25 (or) 315/85R x 22.5. Tread width of
10” per each drive tire.
2. No split rim or wedge lug type wheel allowed. No spoke type wheels. Wheels must be bud type.
WEIGHT OF TRUCK
1. Maximum weight for any truck will be 22,000 lbs. USA-EAST/PULL-OFF or the promoter may
weigh any truck at any time. If the wheelbase is too long to t all three axles on the scales, the truck
may be “spilt” weighed. A variance of one percent (220 lbs.) will be given ONLY if the truck must be
“split” weighed.
2. No added weight or ballast permitted.
3. All trucks shall appear 'road ready'.
4. No hanging weight permitted anywhere on the truck or hitch.
Adopted: January 2023
This class is for STREET LEGAL, LICENSED semi-trucks. Any truck that dominates in the class may
be handicapped or may be moved up a class. This is truly an OPEN class for all working-class semi-
trucks, but it is NOT a PURE STOCK class. There may be other “local fair” rules imposed on this
class at certain events.
LEGALITY OF ENTRY
All entries must be a Street Licensed Semi Truck. The owner must furnish a current registration
card for the vehicle at the time of registration and the driver must have a valid CDL license. Truck
must be capable of pulling a trailer on the highway. All trucks must be driven to the pulls, no
exceptions. These rules may be altered or changed at any time throughout the season for anything
that becomes a safety issue.
SAFETY CONSIDERATIONS
No riders are permitted in trucks during pull attempts. Driver may not leave the driver's seat while
the vehicle is on the pulling track. Driver will take all directions from the flagman on the track.
Drivers must use a seatbelt and/or shoulder harness when hooked to the sled. All trucks must have
a fire extinguisher per USA-EAST general rules.
AIR BAGS/AXLES
1. Only tandem drive axle semi-trucks will be permitted to compete. Tandem axle spacing must be
between 60” and 52”. No front wheel drive will be permitted. No single axle trucks. No dump
trucks. No specialty trucks (well-drilling, wreckers, boom trucks, etc.) will be permitted to
compete.
2. On a trial basis for 2023, trucks with airbag lift axles will be permitted but must put down
pressure on the axle. All tires must remain in contact with the pulling surface at all times while
hooked to the sled.
3. There must be 66” from the center of the tandems to the first obstruction forward such as the
back of the truck cab, toolbox, wet line box, etc.
4. The use of air bags is permitted. However, no air may be added to or removed from the air bags
while the truck is hooked to the weight transfer machine.
5. The height of the hitch must remain the same from start to finish. Any change in the hitch height
will be cause for disqualification.
6. All air bags will be fully inflated and then the hitch height will be set.ENGINE AND TRANSMISSION
1. Maximum RPM limit of 2,500.
2. Water injection in any form is not permitted. Air to air intercooler only. No ice or water permitted
on the truck during competition. An OEM equipped; liquid cooled aftercooler is permitted.
3. No ether, alcohol, nitrous or other combustible (propellant) liquid or combustible material may
be injected into the turbocharger or any part of the air intake system.
4. Turbos are limited to single O.E.M. Turbocharger with an O.E.M 3.2-inch (82mm) maximum
inducer bore on the atmosphere turbo with O.E.M factory exhaust wheels. The bore will be
measured using a 3.2-inch slug. Compressor wheel must protrude 1/8 inch into the 3.6 bore. Map
width enhancement of .180” maximum is permitted which must be in the O.E.M. location, (no
forward facing MWE groove). Any cut, notched, or etc. turbo wheels/blades will result in a
disqualification. Turbo housing must be unaltered OEM/ Factory with no provision made for extra
air ow and/or machining to allow larger turbo wheels in the housing. No bushing of the inducer is
permitted. It is the responsibility of the driver to make the inlet of the turbo accessible for
inspection, a USA-EAST seal will be placed on the compressor housing for future reference. If the
seal us in place and undamaged, no turbo inspection is required. Failure to allow for turbo
inspection will result in immediate disqualification. Any truck disqualified for this reason will be
required to undergo a complete super tech prior to any further competition. Absolutely no refunds
for any illegal turbo found after the class has pulled. Exceptions;
a) A factory 2005-2009 & 2011 CAT twin turbo engine is permitted with the factory-installed non-
altered turbos.
b) Detroit Diesel two-cycle engines may utilize one turbocharger per bank, single-staged only. Must
be OEM stock Air Research or equivalent aftermarket turbo.
c) Cummins KT 600 model engines must retain stock turbo and stock wheel.
5. All exhaust must exit behind the driver’s compartment (no hood stacks permitted) and must exit
vertically. (Turnout, bull hauler, aussie, etc. stack tips are permitted).
6. Transmissions and rear ends must be commercial semi-truck factory components.
7. Only mechanically activated clutches are permitted. (Hydraulic assists are permitted)
ELECTRONIC FUEL INJECTION SYSTEMS/FUEL INJECTION PUMPS
1. Alteration/modification/replacement of the (OEM) original factory fuel pump is not permitted. No
pump may be modified with Sigma parts. No Billet fuel pumps.
2. A Cummins engine must have a Cummins fuel pump - A Detroit must have a Detroit fuel pump –
A Cat must have a cat fuel pump.
3. No sigma pumps OR MW pumps are permitted. Normal pump diesel is the only fuel permitted in
this class.HITCHES
1. Trucks that compete regularly are required to have their own hitching device that is subject to
approval by the head tech official at each event. This hitch must work from the 5th wheel with the
5th wheel centered between the two rear axles. The hitch must be adjustable so that the height
from the ground to the point of hook is between 20” and 16” + or – 1”. The promoter will provide
hitches at each event. The hitch will be measured when the truck weighs in AND immediately
before the semi hooks to the sled.
2. Centerline of the rear axle to hook point on the semi hitch must be no greater than 7 feet.
3. Fifth Wheel Position- Kingpin/Fifth wheel plate position no further forward then the center of the
front axle and no further back then center between the two axles.
TIRES
1. All tires must be road use approved tires and available to the public. Dual wheels and dual tires
must be used on the rear axles. No chains or cables permitted. No cutting of tires is permitted.
Maximum tire size limited to; 11x24.5 x 8.25 (or) 10 x 22 x 8.25 (or) 315/85R x 22.5. Tread width of
10” per each drive tire.
2. No split rim or wedge lug type wheel allowed. No spoke type wheels. Wheels must be bud type.
WEIGHT OF TRUCK
1. Maximum weight for any truck will be 22,000 lbs. USA-EAST/PULL-OFF or the promoter may
weigh any truck at any time. If the wheelbase is too long to t all three axles on the scales, the truck
may be “spilt” weighed. A variance of one percent (220 lbs.) will be given ONLY if the truck must be
“split” weighed.
2. No added weight or ballast permitted.
3. All trucks shall appear 'road ready'.
4. No hanging weight permitted anywhere on the truck or hitch.
Hot Farm
Tractors eligible for this class also include the following…. Interstate Pro Farm, East Coast Hot Farm, Snyder
County Hot Stock. As they fit their organized rule set. (2028 the class will be 510 cubic inch or less)
1. Maximum weight permitted 9,500
- Maximum weight permitted 10,000 East Coast 466 Hot Farm at their original rules.
2. 20.8 x 38 Maximum tire size. No rim size larger than 38 in diameter.
3. Water Injection: High pressure water injection is allowed in the crossover pipe and ported water is
allowed in the intake manifold only, not in the head. Water only permitted.
4. No cooling devices of any kind permitted. No ice on tractor during competition.
5. Engines Maximum cubic inch 510
5a. Any cast or re-manufactured cylinder head will be accepted. Cylinder head must retain OEM length
and width for the engine application. Valves must retain OEM angle for engine application. 2 valves per
cylinder maximum. No overhead cams.
5b. Not allowed to cross manufacturer’s lines.
6. Turbos 6A. Intake – 3.00” inlet, Map width enhancement is allowed. Maximum map width .200”. MWE
groove must be inside neck area where intake covered is measured at 3.00”. Compressor wheel must
protrude into three inch bore. Intake housing to be no larger than three inches at the face of the wheel.
6B –Exhaust- 3.50” exhaust housing maximum. All turbine wheel blades protrude into exhaust housing
bore. All air must exit through exhaust housing opening. No map width enhancements on exhaust housing
permitted. Turbine wheel exhaust blade clearance maximum from exhaust housing, 0.060”. (intent - No
cone shaped wheels) Turbine housing to be no larger than 3.50” inches at intersection of turbine wheel
face and tip diameter. No waste gates will be permitted. No variable geometric turbos permitted.
Manifolds:
7. Intake manifold maximum inlet size 3.75” measured on the outside diameter. One inlet pipe only.
8. Largest fuel injection pump allowed will be a P-8600 pump with only one plunger per cylinder.
9. Exhaust headers are allowed.
10. Full face shield helmet, fire suit, fireproof gloves, fireproof shoes, fireproof head-sock
11. All other general tractor rules apply.
Tractors eligible for this class also include the following…. Interstate Pro Farm, East Coast Hot Farm, Snyder
County Hot Stock. As they fit their organized rule set. (2028 the class will be 510 cubic inch or less)
1. Maximum weight permitted 9,500
- Maximum weight permitted 10,000 East Coast 466 Hot Farm at their original rules.
2. 20.8 x 38 Maximum tire size. No rim size larger than 38 in diameter.
3. Water Injection: High pressure water injection is allowed in the crossover pipe and ported water is
allowed in the intake manifold only, not in the head. Water only permitted.
4. No cooling devices of any kind permitted. No ice on tractor during competition.
5. Engines Maximum cubic inch 510
5a. Any cast or re-manufactured cylinder head will be accepted. Cylinder head must retain OEM length
and width for the engine application. Valves must retain OEM angle for engine application. 2 valves per
cylinder maximum. No overhead cams.
5b. Not allowed to cross manufacturer’s lines.
6. Turbos 6A. Intake – 3.00” inlet, Map width enhancement is allowed. Maximum map width .200”. MWE
groove must be inside neck area where intake covered is measured at 3.00”. Compressor wheel must
protrude into three inch bore. Intake housing to be no larger than three inches at the face of the wheel.
6B –Exhaust- 3.50” exhaust housing maximum. All turbine wheel blades protrude into exhaust housing
bore. All air must exit through exhaust housing opening. No map width enhancements on exhaust housing
permitted. Turbine wheel exhaust blade clearance maximum from exhaust housing, 0.060”. (intent - No
cone shaped wheels) Turbine housing to be no larger than 3.50” inches at intersection of turbine wheel
face and tip diameter. No waste gates will be permitted. No variable geometric turbos permitted.
Manifolds:
7. Intake manifold maximum inlet size 3.75” measured on the outside diameter. One inlet pipe only.
8. Largest fuel injection pump allowed will be a P-8600 pump with only one plunger per cylinder.
9. Exhaust headers are allowed.
10. Full face shield helmet, fire suit, fireproof gloves, fireproof shoes, fireproof head-sock
11. All other general tractor rules apply.
Modified 4X4 Drive Trucks
1. Maximum weight of pulling vehicle is 6,200 lbs.
2. Maximum cubic inch limit is 650.
3. Any automotive type engine, must be naturally aspirated, with only two valves per cylinder.
4. Maximum bore spacing allowed is 5.00”.
5. No digital, microprocessor, computer, or programmable ignition controls. No traction control
ignition accessories. No six shooter, power grid systems or similar type ignition controls in any
class.
6. The use of airbags, air shocks, hydraulic cylinders or electronic controls as components of a
chassis’ suspension system is not allowed. This shall not prohibit the use of conventional sealed
circuit shock absorbers that have no external plumbing lines or external reservoirs. 93
7. The use of hydraulic cylinders to retract and or project a weight box is permitted if:
A: The cylinders themselves internally limit the travel within the allowable 60”. No removable or
fixed pins, or external stops, to limit the projection travel.
B: During tech it will be pinned at exact position, and must stay in that position during weigh-in,
hitch pad adjustment, and competition.
8. Rear of engine block can be no farther forward than the centerline of the front axle.
9. Engine must be behind grill.
10. Front weights may not extend more than 60 inches from centerline of front axle. No loose
weights allowed in cab or under hood allowed. Front weight boxes will be rigid and have a minimum
of 8” of ground clearance for staging and competition.
11. Truck or van bodies permitted and must have complete firewall.
12. Planetary axles are permitted.
13.Tube frames are permitted.
14. Axle shields are required. Shield to be .060” thickness steel or aluminum. Shield not to be
mounted to axle ends or hub bolts. A single hole may be cut in one to allow locking in of hubs.
15. Maximum wheelbase is 133 inches on all Modified 4X4 trucks. Wheels must be centered in
wheel wells. Body must be lengthened or shortened between cab and rear wheel wells, to maintain
rear wheels centered in rear wheel well.
16. Maximum tire size to be 112 inch circumference, when 46 inflated to 30 psi with original bar, not
to exceed 18 inches in width before cutting.
17. Front tow hitch will be strong enough to push, pull or pick the vehicle up. Only a 6x6 piece of
steel with a minimum thickness or 1” and a maximum of 1.25” thickness will be allowed. A round
three (3) inch hole is required in front tow hitch.18. Clear plexiglass or factory tint glass permitted.
19. No mud flaps or dirt deflectors will be permitted.
20. No fuel tanks, fuel lines, pressure gauges or pumps allowed in cabs. All hydraulic lines in cab
must be shielded top and sides with a minimum of .060 aluminum.
21. All air or hydraulic suspension systems cannot have hydraulic, air, or electric lines attached
during to these devices during competition.
22. Hitch height maximum to be 26” at point of hook before, during, and after pull. Hitch must be
rigid in all directions and solidly mounted. Pulling point can be no more than 1“inch from back edge
of drawbar. No clevis, chains, or cables permitted in hitching device. From point of hook to
centerline of rear axle shall be no less than 30% of truck wheelbase and shall not slope any greater
than 25º to hitch point.
23. No hitch supports or adjusters, if fastened to the rear axle housing shall be above the center
line of the rear axle. Pivot pin of drawbar can be no farther forward than centerline of the rear axle.
24. Bumper Bars.
A minimum 8 in vertical bumper bar be placed in line with each frame rail so bottom of bar is a
maximum of 18 in. from the ground and located beyond the furthest most part of the body
structure. Bumper bars must be braced forward to frame at both top and bottom (no “T” type bars).
Bumper bar assembly including braces must be min. 1 1/2” x .095” wall steel tubing (square or
round). Bumper bars must be securely attached to prevent collapsing on impact. 47
25. Front safety wheels
a. All FWD vehicles must use (2) wheels no more than 6 inches off the ground, within 6 inches of
the forward most part of the vehicle.
b. Wheels must a minimum of 6 inches in diameter by 4 inches wide.
c. Wheels must support the weight of the vehicle.
d. Wheels must be raised or removed for the purpose of ground clearance when vehicle is not on
competition track. e. Wheels must be at least 3 feet apart.
1. Maximum weight of pulling vehicle is 6,200 lbs.
2. Maximum cubic inch limit is 650.
3. Any automotive type engine, must be naturally aspirated, with only two valves per cylinder.
4. Maximum bore spacing allowed is 5.00”.
5. No digital, microprocessor, computer, or programmable ignition controls. No traction control
ignition accessories. No six shooter, power grid systems or similar type ignition controls in any
class.
6. The use of airbags, air shocks, hydraulic cylinders or electronic controls as components of a
chassis’ suspension system is not allowed. This shall not prohibit the use of conventional sealed
circuit shock absorbers that have no external plumbing lines or external reservoirs. 93
7. The use of hydraulic cylinders to retract and or project a weight box is permitted if:
A: The cylinders themselves internally limit the travel within the allowable 60”. No removable or
fixed pins, or external stops, to limit the projection travel.
B: During tech it will be pinned at exact position, and must stay in that position during weigh-in,
hitch pad adjustment, and competition.
8. Rear of engine block can be no farther forward than the centerline of the front axle.
9. Engine must be behind grill.
10. Front weights may not extend more than 60 inches from centerline of front axle. No loose
weights allowed in cab or under hood allowed. Front weight boxes will be rigid and have a minimum
of 8” of ground clearance for staging and competition.
11. Truck or van bodies permitted and must have complete firewall.
12. Planetary axles are permitted.
13.Tube frames are permitted.
14. Axle shields are required. Shield to be .060” thickness steel or aluminum. Shield not to be
mounted to axle ends or hub bolts. A single hole may be cut in one to allow locking in of hubs.
15. Maximum wheelbase is 133 inches on all Modified 4X4 trucks. Wheels must be centered in
wheel wells. Body must be lengthened or shortened between cab and rear wheel wells, to maintain
rear wheels centered in rear wheel well.
16. Maximum tire size to be 112 inch circumference, when 46 inflated to 30 psi with original bar, not
to exceed 18 inches in width before cutting.
17. Front tow hitch will be strong enough to push, pull or pick the vehicle up. Only a 6x6 piece of
steel with a minimum thickness or 1” and a maximum of 1.25” thickness will be allowed. A round
three (3) inch hole is required in front tow hitch.18. Clear plexiglass or factory tint glass permitted.
19. No mud flaps or dirt deflectors will be permitted.
20. No fuel tanks, fuel lines, pressure gauges or pumps allowed in cabs. All hydraulic lines in cab
must be shielded top and sides with a minimum of .060 aluminum.
21. All air or hydraulic suspension systems cannot have hydraulic, air, or electric lines attached
during to these devices during competition.
22. Hitch height maximum to be 26” at point of hook before, during, and after pull. Hitch must be
rigid in all directions and solidly mounted. Pulling point can be no more than 1“inch from back edge
of drawbar. No clevis, chains, or cables permitted in hitching device. From point of hook to
centerline of rear axle shall be no less than 30% of truck wheelbase and shall not slope any greater
than 25º to hitch point.
23. No hitch supports or adjusters, if fastened to the rear axle housing shall be above the center
line of the rear axle. Pivot pin of drawbar can be no farther forward than centerline of the rear axle.
24. Bumper Bars.
A minimum 8 in vertical bumper bar be placed in line with each frame rail so bottom of bar is a
maximum of 18 in. from the ground and located beyond the furthest most part of the body
structure. Bumper bars must be braced forward to frame at both top and bottom (no “T” type bars).
Bumper bar assembly including braces must be min. 1 1/2” x .095” wall steel tubing (square or
round). Bumper bars must be securely attached to prevent collapsing on impact. 47
25. Front safety wheels
a. All FWD vehicles must use (2) wheels no more than 6 inches off the ground, within 6 inches of
the forward most part of the vehicle.
b. Wheels must a minimum of 6 inches in diameter by 4 inches wide.
c. Wheels must support the weight of the vehicle.
d. Wheels must be raised or removed for the purpose of ground clearance when vehicle is not on
competition track. e. Wheels must be at least 3 feet apart.
SUPER STOCK 4X4 TRUCKS
Adopted: January 2024
USA-EAST Officials reserve the right to alter these rules before or during the season in order to deal
with safety related issues or to insure the competitive nature of the class. The provision for
‘bumping up’ from other FWD CLASSES lies with the head official and may or may not be available
at every event.
COMPETITION VARIANCES
1. Four-Wheel-Drive Trucks
a) Maximum weight of all 4x4 will be 7,500 lbs.
b) Limited Pro Diesel (3.0) trucks will be allowed to compete in the RWYB class at a maximum
weight of 8,000 lbs. if they comply with all current rules in place for their respective class. If the
turbo, tires, etc. are changed from current 3.0 rules, maximum weight is limited to 7,500 lbs. as all
other 4x4 trucks. 3.0 trucks will only be allowed to compete in one class per event if both RWYB &
3.0 classes are offered.
c) Maximum drawbar height for all 4x4 trucks will be 26”, with the following exceptions;
i. Naturally aspirated trucks will be 28" hitch.
ii. Naturally aspirated with nitrous will be 27”.
DRAWBARS
Diesel Super Stock Trucks, Lim Pro 3.0 Trucks, Nitrous Engine Trucks 134”-158” wheelbase – Hook
point must be no closer than 44” of center line of rear axle, hitch height maximum of 26”, with a
minimum of a 3.75” X 3.0” opening. Hitch point must be easily accessed. No “trick” type hitches
permitted. Hitch must be stationary in all directions. Hitch must be frame mounted. Hitch must be
mounted center line of rear axle or behind. Hitch must not exceed a maximum of 33° angle from
pivot point to hook point. No hitch supports or adjusters, fastened to the rear axle housing shall be
above the center line of rear axle. Pivot pin of drawbar can be no further forward than centerline of
the rear axle.
Naturally Aspirated or Blown Alcohol Engine Trucks with 133” Wheelbase or smaller Hook point
must be no closer than 30% of the actual wheelbase of the truck (133” wheelbase is 39.9” hitch
length) Hitch height maximum of 26” (with above exceptions), with a minimum of a 3.75” X 3.0”
opening. No “trick” type hitches permitted. Hitch must be stationary in all directions. Hitch must
be frame mounted. Hitch must be mounted center line of rear axle or behind. Hitch must not
exceed a maximum of 33° angle from pivot point to hook point. No hitch supports or adjusters,
fastened to the rear axle housing shall be above the center line of rear axle. Pivot pin of drawbar
can be no further forward than centerline of the rear axle.DRIVELINE
Aftermarket transfer cases are permitted. Planetary axles are permitted. Axle shields are required
and will be .060” thickness in steel or aluminum. Shield shall not be mounted to axle ends or hub
bolts. An access hole may be left open to allow locking in the hubs.
ENGINES
All engines must be behind the grill. Gasoline or alcohol engines, rear of engine block can be no
further forward than the center line of the front axle. Diesel engines, front of engine block can be no
farther forward than 25” of center line of front axle.
● GASOLINE or ALCOHOL ENGINES may utilize a single supercharger or a single turbocharger. All
shields and restraints on the supercharger must be in place. (See turbochargers/superchargers
section)
○ Maximum supercharger size: 14-71, 19-inch rotor length. For vehicles utilizing an 8-71 blower the
following dimensions: 16-inch rotor case length.
○ Screw-type superchargers are not permitted.
○ Variable multi-speed supercharger devices prohibited.
○ Pro-Chargers are allowed a maximum size of F-3R-130
○ Fuel injection is permitted. A single turbocharger is also permitted in this conguration.
○ Supercharged or single stage turbocharged engines are limited to 575 cubic inches.
DIESEL ENGINES
are restricted to 6 cylinder and 8-cylinder compression ignition engines. Class maximum of 460
cubic inches will be enforced. Diesel engines must have been available in a one-ton or less truck
from the factory. Sigma fuel pumps are permitted. Water injection is permitted. The fuel must be
pump #1/#2 diesel only. Soy or Biodiesel fuel is permitted. Diesel engines may use an unlimited
size turbocharger(s). International DT466 blocks or their replacements will be limited to 2 turbo
chargers and 2 Pressure stages. Maximum of 460 Cubic Inches.
EXHAUST
● The exhaust on a GASOLINE or ALCOHOL vehicle may exit downward at the back of the truck or
directly out the back of the truck or straight up through the hood of the truck or straight up at the
back of the cab.
● All DIESEL vehicles must be equipped to direct exhaust upward.
FIREWALL
Each vehicle must be equipped with an OEM or minimum 0.024-inch steel firewall, OR ¼” Lexan
from side to side of the body and from the top of the engine compartments upper seal (hood, cowl,
or deck) to the bottom of the floor and/or belly pan. The firewall must provide a bulkhead betweenthe engine and/or fuel tank and driver compartment. All openings must be sealed with metal-
excluding grommets. The use of magnesium is prohibited.
FLOOR
Each vehicle in competition must be equipped with an OEM floor pan or a minimum 0.024-inch
steel floor pan that extends the full length and width of the driver seating area. Non-OEM floor pans
must have cross members (minimum two inch by two-inch, 0.083-inch wall thickness square
tubing) installed between the frame rails for proper seat and driver restraint system installation and
support. All openings must be sealed with metal-excluding grommets. The use of fiber glass and/or
magnesium is prohibited.
GENERAL
1. Clear plexiglass or factory tint glass permitted.
2. No mud flaps or dirt deflectors will be permitted.
3. No fuel tanks, fuel lines, pressure gauges or pumps allowed in cabs. All hydraulic lines in the cab
must be shielded top and sides with a minimum of .060 aluminum.
4. All air or hydraulic suspension systems cannot have hydraulic, air, or electric lines attached to
these devices during competition.
5. No digital, microprocessor, computer, or programmable ignition controls. No traction control
ignition accessories. No six shooter, power grid systems or similar type ignition controls. (Starter
saver allowed)
NITROUS OXIDE
Nitrous Oxide is permitted for use on any naturally aspirated gasoline engine. This may not be used
with alcohol or with any turbocharged or supercharged engine.
OTHER FUELS AND ADDITIVES
Propane/NOS, etc. is prohibited on all engines except naturally aspirated gasoline engines.
System components used for these banned substances must be fully removed from the truck.
Other oxygen extenders are prohibited such as propylene oxide additives. Racing fuel is permitted.
TIRES
1. Four-wheel drive
a) Bar tires, maximum of four (4) tires, no duals, no combination of bar tires & DOT tires.
b) DOT tires, maximum tire height 36”, no studded tires or chains. Dual rear wheels are permitted
on the rear axle only. Maximum of 6 tires.TRANSMISSIONS
Aftermarket transmissions are permitted. All manual transmissions must be clutch assisted,
sequential shifters are prohibited.
WEIGHTS
Front weights may not extend more than 60 inches from the centerline of the front axle. No loose
weights allowed in the cab or under the hood allowed. Front weight boxes will be rigid & have a
minimum of eight (8) inches of ground clearance for staging & competition. Front tow hitch will be
strong enough to push, pull or pick the vehicle up. Only a 6x6 piece of steel with a minimum
thickness or 1” and a maximum of 1.25” thickness will be allowed. A round three (3) inch hole is
required in front tow hitch.
WHEELBASE
The maximum wheelbase length allowed is 158 inches. The maximum wheelbase variation from
left to right is one inch; the measurement will be made using an X pattern (LF-RR and RF-LR). The
maximum tread width is 102 inches. Extending rear wheels beyond the OEM position is permitted.
Adopted: January 2024
USA-EAST Officials reserve the right to alter these rules before or during the season in order to deal
with safety related issues or to insure the competitive nature of the class. The provision for
‘bumping up’ from other FWD CLASSES lies with the head official and may or may not be available
at every event.
COMPETITION VARIANCES
1. Four-Wheel-Drive Trucks
a) Maximum weight of all 4x4 will be 7,500 lbs.
b) Limited Pro Diesel (3.0) trucks will be allowed to compete in the RWYB class at a maximum
weight of 8,000 lbs. if they comply with all current rules in place for their respective class. If the
turbo, tires, etc. are changed from current 3.0 rules, maximum weight is limited to 7,500 lbs. as all
other 4x4 trucks. 3.0 trucks will only be allowed to compete in one class per event if both RWYB &
3.0 classes are offered.
c) Maximum drawbar height for all 4x4 trucks will be 26”, with the following exceptions;
i. Naturally aspirated trucks will be 28" hitch.
ii. Naturally aspirated with nitrous will be 27”.
DRAWBARS
Diesel Super Stock Trucks, Lim Pro 3.0 Trucks, Nitrous Engine Trucks 134”-158” wheelbase – Hook
point must be no closer than 44” of center line of rear axle, hitch height maximum of 26”, with a
minimum of a 3.75” X 3.0” opening. Hitch point must be easily accessed. No “trick” type hitches
permitted. Hitch must be stationary in all directions. Hitch must be frame mounted. Hitch must be
mounted center line of rear axle or behind. Hitch must not exceed a maximum of 33° angle from
pivot point to hook point. No hitch supports or adjusters, fastened to the rear axle housing shall be
above the center line of rear axle. Pivot pin of drawbar can be no further forward than centerline of
the rear axle.
Naturally Aspirated or Blown Alcohol Engine Trucks with 133” Wheelbase or smaller Hook point
must be no closer than 30% of the actual wheelbase of the truck (133” wheelbase is 39.9” hitch
length) Hitch height maximum of 26” (with above exceptions), with a minimum of a 3.75” X 3.0”
opening. No “trick” type hitches permitted. Hitch must be stationary in all directions. Hitch must
be frame mounted. Hitch must be mounted center line of rear axle or behind. Hitch must not
exceed a maximum of 33° angle from pivot point to hook point. No hitch supports or adjusters,
fastened to the rear axle housing shall be above the center line of rear axle. Pivot pin of drawbar
can be no further forward than centerline of the rear axle.DRIVELINE
Aftermarket transfer cases are permitted. Planetary axles are permitted. Axle shields are required
and will be .060” thickness in steel or aluminum. Shield shall not be mounted to axle ends or hub
bolts. An access hole may be left open to allow locking in the hubs.
ENGINES
All engines must be behind the grill. Gasoline or alcohol engines, rear of engine block can be no
further forward than the center line of the front axle. Diesel engines, front of engine block can be no
farther forward than 25” of center line of front axle.
● GASOLINE or ALCOHOL ENGINES may utilize a single supercharger or a single turbocharger. All
shields and restraints on the supercharger must be in place. (See turbochargers/superchargers
section)
○ Maximum supercharger size: 14-71, 19-inch rotor length. For vehicles utilizing an 8-71 blower the
following dimensions: 16-inch rotor case length.
○ Screw-type superchargers are not permitted.
○ Variable multi-speed supercharger devices prohibited.
○ Pro-Chargers are allowed a maximum size of F-3R-130
○ Fuel injection is permitted. A single turbocharger is also permitted in this conguration.
○ Supercharged or single stage turbocharged engines are limited to 575 cubic inches.
DIESEL ENGINES
are restricted to 6 cylinder and 8-cylinder compression ignition engines. Class maximum of 460
cubic inches will be enforced. Diesel engines must have been available in a one-ton or less truck
from the factory. Sigma fuel pumps are permitted. Water injection is permitted. The fuel must be
pump #1/#2 diesel only. Soy or Biodiesel fuel is permitted. Diesel engines may use an unlimited
size turbocharger(s). International DT466 blocks or their replacements will be limited to 2 turbo
chargers and 2 Pressure stages. Maximum of 460 Cubic Inches.
EXHAUST
● The exhaust on a GASOLINE or ALCOHOL vehicle may exit downward at the back of the truck or
directly out the back of the truck or straight up through the hood of the truck or straight up at the
back of the cab.
● All DIESEL vehicles must be equipped to direct exhaust upward.
FIREWALL
Each vehicle must be equipped with an OEM or minimum 0.024-inch steel firewall, OR ¼” Lexan
from side to side of the body and from the top of the engine compartments upper seal (hood, cowl,
or deck) to the bottom of the floor and/or belly pan. The firewall must provide a bulkhead betweenthe engine and/or fuel tank and driver compartment. All openings must be sealed with metal-
excluding grommets. The use of magnesium is prohibited.
FLOOR
Each vehicle in competition must be equipped with an OEM floor pan or a minimum 0.024-inch
steel floor pan that extends the full length and width of the driver seating area. Non-OEM floor pans
must have cross members (minimum two inch by two-inch, 0.083-inch wall thickness square
tubing) installed between the frame rails for proper seat and driver restraint system installation and
support. All openings must be sealed with metal-excluding grommets. The use of fiber glass and/or
magnesium is prohibited.
GENERAL
1. Clear plexiglass or factory tint glass permitted.
2. No mud flaps or dirt deflectors will be permitted.
3. No fuel tanks, fuel lines, pressure gauges or pumps allowed in cabs. All hydraulic lines in the cab
must be shielded top and sides with a minimum of .060 aluminum.
4. All air or hydraulic suspension systems cannot have hydraulic, air, or electric lines attached to
these devices during competition.
5. No digital, microprocessor, computer, or programmable ignition controls. No traction control
ignition accessories. No six shooter, power grid systems or similar type ignition controls. (Starter
saver allowed)
NITROUS OXIDE
Nitrous Oxide is permitted for use on any naturally aspirated gasoline engine. This may not be used
with alcohol or with any turbocharged or supercharged engine.
OTHER FUELS AND ADDITIVES
Propane/NOS, etc. is prohibited on all engines except naturally aspirated gasoline engines.
System components used for these banned substances must be fully removed from the truck.
Other oxygen extenders are prohibited such as propylene oxide additives. Racing fuel is permitted.
TIRES
1. Four-wheel drive
a) Bar tires, maximum of four (4) tires, no duals, no combination of bar tires & DOT tires.
b) DOT tires, maximum tire height 36”, no studded tires or chains. Dual rear wheels are permitted
on the rear axle only. Maximum of 6 tires.TRANSMISSIONS
Aftermarket transmissions are permitted. All manual transmissions must be clutch assisted,
sequential shifters are prohibited.
WEIGHTS
Front weights may not extend more than 60 inches from the centerline of the front axle. No loose
weights allowed in the cab or under the hood allowed. Front weight boxes will be rigid & have a
minimum of eight (8) inches of ground clearance for staging & competition. Front tow hitch will be
strong enough to push, pull or pick the vehicle up. Only a 6x6 piece of steel with a minimum
thickness or 1” and a maximum of 1.25” thickness will be allowed. A round three (3) inch hole is
required in front tow hitch.
WHEELBASE
The maximum wheelbase length allowed is 158 inches. The maximum wheelbase variation from
left to right is one inch; the measurement will be made using an X pattern (LF-RR and RF-LR). The
maximum tread width is 102 inches. Extending rear wheels beyond the OEM position is permitted.
Tractor Rules:
Antique Tractors (5,000, 6,000, 7,000):
- Pull is open to pre-1966 agricultural tractors.
- Gasoline, Diesel, Kerosene, and Propane powered engines only.
- Engine must be stock with stock fuel system and stock style ignition.
- No turbos (unless the model was factory equipped with a turbo).
- No cut tires.
- Drawbar must be stationary in all directions. 20 inch maximum height and 18 inch minimum length from the center of the rear axle. Drawbar must be equipped with a 3 inch opening.
- All classes will have a 3.5 MPH pace tractor.
- Add-on weights are allowed. They must not extend more than 11 feet from the center of the rear axle to the farthest point forward and must not extend rearward beyond the tires.
- Tractors equipped with steel wheels will pull at the end of the class.
- Maximum tire size allowed: 7,000 lbs. – 18 inches / 6,000 lbs. and 5,000 lbs. – 16 inches
Turbo Tractors (9,000, 11,000, 13,000):
- Tractors must be stock block agricultural with no visual engine modification except air cleaners. No cubic limit. Engine must be original type or factory replacement. All turbo chargers must be under the hood. Original style hood and grill must be in place. No electric fuel pump unless stock factory equipment. Starter must be in place. Fenders must be present on all 1957 and newer tractors.
- All exhaust must:
- Discharge upward with a minimum pipe length of 18 inches from hood line or use a muffler. If a curved pipe is used it must discharge forward unless it is stock factory equipped and does not allow it to be turned.
- Be a factory under-slung exhaust system in working condition.
- No water injection. No intercoolers and turbo chargers allowed unless original factory equipment for the make and model entered in the 9,000 lb. class. Any 3” turbo allowed in the 11,000 lb. and 13,000 lb. classes. Inside turbo must be stock for make and model of turbo. A 3” turbo is defined as a turbo with a maximum of a 3” outside measurement on the position of the turbo charger on the intake side of the turbo charger where intake hose would fasten over the housing of the turbo charger. The housing where the intake tube, if used, fits over must be stock for that make and model of turbo charger and cannot be machined down to 3” measurement. No nitrous or added propane fuel allowed.
- Weight classes and the maximum tire width for each are as follows:
- 9,000 lbs. – 18.4” x 38”; 20.8” x 38”; or 23.1” x 30”
- 11,000 lbs. & 13,000 lbs. – 24.5”
- Note – Rim width may not be wider than the tire being used.
- Contest is open to two (2) wheel drive tractors with rubber tires. No sharpened tires, dual tires, tire studs, or chains permitted. Four (4) wheel drive tractors allowed if the front wheels are disengaged.
- Draw bar is to be stationary in all directions with not more than an inch of movement in any one direction. Maximum height of draw bar is 20 inches for the all classes. Draw bar must be equipped with a steel hitch in device not more than 1 inch thick and a minimum of 3” x 3-3/4” diameter opening. Cross sectional thickness must be 7/8” minimum. Pulling point may not be more than 1 ½ inches from back edge of hitching device. Complete factory setup is suggested. No quick hitch type adaptors allowed.
- No portion of tractor or ballast may interfere with the sled or sled hitch during the pull.
- All weight frame and weights must be stationary and safely secured to the tractor and must not extend beyond the rear tires. No weight may be located in a position which could hinder safe operation of the tractor. No ballast on tractor seat/deck. No weight or bracket may exceed in width 12 inches beyond the tires. Any ballast or external parts lost while hooked to the sled will be cause for disqualification. No weights to be closer than 8 inches to draw bar hook point.
- All tractors must have rear wheel brakes in working condition.
- RPMs will be limited to 3,000. This will be checked before the tractor is allowed to pull. They can also be checked after the pull at the end of the track. If during a check of RPMs the tractor exceeds maximum allowed that tractor will be disqualified and all purse monies, if any won, will be forfeited. During a pull the governor must be in working condition and must not allow engine to exceed maximum RPMs under load.
- Any rotating PTO shaft that cannot be stopped by the driver’s hand must be shielded.
- All stock tractors will be checked to make sure they are stock.
- The use of torque converters, automatic shifts, etc. will be permitted on original factory equipment for make and model being entered. No slip clutches.
- The judge will verify class entered; their decision is final.