DIESEL TRUCK PULL RULES

 

 

 

Workstock Diesel Rules

 

Maximum Weight

 

· 8,200 lbs

 

 

Batteries

 

· The batteries must be securely mounted and in the factory location.

 

 

Body

 

· The body must be the OEM truck body, including the full bed floor.

 

· The body must retain full sheet metal.

 

· Metal aftermarket hooks are permitted.

 

· No fiberglass hoods.

 

· The hood must be fully closed and securely latched while hooked to the sled.

 

· The OEM complete firewall and OEM floor pan are mandatory.

 

· A factory pickup bed or commercial aftermarket flatbed must be installed.

 

 

Brakes

 

· Four-wheel hydraulic brakes are mandatory and must be functional.

 

 

Chassis

 

· The OEM chassis is mandatory.

 

· The engine must be in the factory location for the body used.

 

· The vehicle must retain the full OEM chassis.

 

· Wheel tubs, back-half conversions, tube chassis, etc, are prohibited.

 

 

Cooling System

 

· Radiators must be in the stock location and be at least stock size.

 

 

Compressed Gases

 

· The use of any compressed gases is prohibited.

 

· This includes Nitrous, propane, or any other.

 

 

Driveline

 

· OEM transmissions and transfer cases are mandatory.

 

· They must have been an option for a one-ton or smaller pickup.

 

Driver Restraint System

 

· The OEM restraint system is mandatory and must be worn.

 

 

Engine

 

· The engine is limited to a stock appearing. OEM compression engines are available from the factory in a one-ton or smaller pickup.

 

 

Exhaust

 

· All vehicles are recommended to be equipped to direct exhaust upward.

 

· The exhaust must exit rearward of the driver’s compartment.

 

· Stacks exiting through the hood or fender wells are prohibited.

 

· 2-3/8” cross bolts must be installed within 6” from the turbo

 

 

Fuel

 

· The fuel must be #1, #2 Diesel or soy/biodiesel

 

Fuel Injection Pump

 

· OEM fuel systems only.

 

· No dual CP3’s

 

· No AG Governors

 

 

Harmonic Balancer

 

· All engines turning more than 3500 RPM must be equipped with a harmonic balancer or damper meeting SFI Spec 18.1

 

 

Hitch

 

· **See pictures below for styles

 

· 24” Maximum to the top of the hitch from the ground.

 

· The hitch must be a Reese-style hitch.

 

· Reinforcements are permitted but cannot go past the centerline of the rear axle.

 

· Trick hitches are prohibited.

 

· No drawbar-style hitches at all.

 

· The hitch must be horizontal to the ground and stationary in all directions.

 

· The bumper may be notched or removed.

 

· The hooking point must have a minimum of 3”x3-3/4” inside opening for the sled to hook.

 

· The hooking point must be a minimum of 44” from the centerline of the rear axle.

 

· The hooking point will be where the hook touches the metal.

 

· No bars above frame rails or in front/past the centerline of the rear end.

 

· If your hitch does not look like this, you can pull but are automatically disqualified.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interior

 

· A complete factory OEM interior, including dashboard, door panels, etc, is mandatory.

 

· Aftermarket seats can be used but must be fully upholstered.

 

· The use of hand throttle is prohibited.

 

 

Rear end

 

· The rear ends must be from a one-ton or smaller OEM pickup truck rear end.

 

· Must have a factory front axle from the manufacturer.

 

 

Steering

 

· The vehicle must retain the full, original OEM steering gear.

 

· The vehicle must retain the original OEM power assist.

 

· Non-OEM power assist is prohibited.

 

 

Front Suspension

 

· The factory suspension configuration must be retained.

 

 

Rear Suspension

 

· An OEM-style suspension is mandatory.

 

· Traction bars and devices are permitted. They must be bolted on only.

 

· Welds are permitted for attachments to the frame or axle housing.

 

· Traction bars if equipped must have a chain/cable one foot from the support to catch the bar in case of failure.

 

· All OEM suspension mounting points must be used.

 

· Must have at least one shock absorber per wheel.

 

· Are bags are prohibited.

 

 

Tires

 

· All tires must be DOT-approved tires.

 

· 35” max on single wheel trucks.

 

· 35” max on dual rear wheel trucks. (Dual rear wheel trucks must use dually wheels front and back no removal of adaptor on the front to run a wider wheel. Rear dually fenders are mandatory)

 

 

Transmission

 

· All transmissions, automatic or standard, must be from a one-ton or smaller OEM pickup truck.

 

· Any vehicle spinning more than 4500 RPM must have an approved blanket on the transmission.

 

 

Turbocharger

 

· T-3 mount only.

 

· The turbocharger must be a stock appearing from a one-ton or smaller pickup.

 

· The turbocharger must be in the stock location of the manufacturer.

 

· A single .200-inch MWE Groove (no forward facing) must be 90 degrees to the bore in the factory location.

 

· No forward facing MWE groove.

 

· The inducer bore must be non-removeable.

 

· All air must go through the inducer bore and the MWE groove.

 

· The wheel must intrude into the bore 1/8”

 

· Turbo will be checked

 

· Turbos are allowed to be interchanged from different years, makes, and models as long as they were offered from the factory in a one-ton or smaller pickup truck using the factory footprint. (You can’t interchange turbo parts from Cummins, Duramax, or Powerstroke. Ex: Compressor housing must match exhaust housing. EX: HE351 compressor housing & HE351 exhaust housing)

 

· S-300 Center sections allowed, nothing larger.

 

· Powerstroke 6.4 engines using the factory-style twin turbos must use a stock-size intake wheel on the atmosphere turbo. (65MM)

 

· 2.5 inlet will be checked with a 2.55 plug.

 

· Wheel must protrude into the 2.5 bore 1/8th of an inch.

 

 

Water injection

 

· Is prohibited

 

 

Wheelbase

 

· The factory wheelbase must be used.

 

· Cab and Chassis trucks may not exceed 172” or exceed 102” in width.

 

 

Weights

 

· Hanging weights are permitted.

 

· No weight boxes.

 

· Suitcase weights only.

 

· Weights cannot exceed no farther forward than 60” from the centerline of the front axle.

 

· All weights must be secure.

 

· Disqualification if weights fall off going down the track.

 

 

Drive shaft loop/shield

 

· You must have a driveshaft loop/shield at the rearend covering the u-joint (will give you 3 hooks to get one put on)

 

· A front driveshaft loop/shield is highly recommended at the front axle covering the u-joint.

 

 

Factory Fuel Tank

 

· Must be in the factory location or a fuel cell mounted in the bed can be used.

 

The tech official has the final ruling on any rules the day of the event.

 

 

MUST WEAR HELMETAND HAVE A FIRE EXTINGUISHER INSIDE THE TRUCK.

 

NO RIDERS. DRIVER’S ONLY. A TRUCK CAN ONLY BE REGISTERED TO ONE CLASS AND ONE DRIVER.

 

 

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