Added weight must be securely mounted in bed.

Batteries must be securely mounted

The truck must have a bed floor. Fiberglass hoods are permitted

Four wheel hydraulic brakes are mandatory.

The OEM chassis is mandatory. The engine must be in the stock location

Radiators must be in stock location

An OEM transmission and transfer case are mandatory. They must have been an option in a one ton or smaller truck.

Driver seat belt must be worn

The engine is limited to a stock appearing, OEM make-specific compression ignition diesel engine with a max rpm of 4500 unless the OEM governed speed is heigher. Maximum 6000 rpm for gas powered trucks

Stock type exhaust, single, and/or dual stacks must exit upward or straight back

Complete OEM firewall is mandatory

Complete OEM cab floor pan is mandatory

Fuel must be #1, #2 or bio-diesel

The injection pump is limited to a stock appearing, OEM engine model specific pump only. Multiple high pressure common rail pumps are prohibited. Powerstroke engines with a single factory turbo may utilize a second HPOP. Pumps from different years in the same engine model may be interchanged.

The OEM fuel tank must be used

Must be a “Reese” style hitch, reinforcements are allowed. Trick hitches are prohibited. The hooking point must be the rear most part of the truck and be rearward of the stock location of the tailgate. The hitch must be horizontal to the ground and stationary in all directions. Max hitch height is 26 inches and must have an opening of at least 3 inches (size of opening in hitch itself or size of clevis attached to hitch).

Nitrous oxide is prohibited

Propane is prohibited

Non OEM axle housing are prohibited. It must have been an option in a one ton or smaller truck

Front suspension must have strut lower braces, lower tie bars sway bars and limit straps are permitted. Traction bars and devices are permitted

Rear Suspension: An OEM style suspension is mandatory. Traction bars and devices are permitted, they must be bolt on only. The brackets may be welded to the axle housing or frame. Solid blocks are allowed. Airbag assistance is allowed, airbag compressor must be disconnected

Tires must be DOT approved. Cutting is not allowed

If running tires larger than 35”tall ( as designated by the manuf.) a u-joint shield must be run on the joints at the axles. The shield must cover the joints completely and be ¼” thick if made from steel and 3/8” thick if alum.

Must run an OEM transfer case that was an option on a one ton or smaller truck

Automatic Transmission: Non OEM transmissions are prohibited. Aftermarket torque converters, valve bodies, and internal components are permitted. Trans brakes are prohibited. Any non OEM floor mounted shifter must have a spring loaded positive reverse lockout device. A functional neutral safety switch is mandatory. All transmission lines must be metallic or high pressure hose. All vehicles with engines running 4500 rpm or more with an auto transmission must be equipped with a transmission shield or blanket meeting SFI spec 4.1 and be labeled accordingly. Blankets must extend from the rear of the back to the front of the tailhousing with a minimum six inch overlap where it is fastened. All non blanket type shields must incorpoarate two (or one per manufacturer’s instructions) 3/4 by 1/8” straps that bolt to the shield on each side and pass under the transmission pan unless the pan is labeled as meeting SFI spec 4.1. All vehicles with engines exceeding 4500 rpm and using an auto transmission must be equipped with a flex plate meeting SFI spec 29.1 and be covered by a flex plate shield meeting SFI spec 30.1

Manual transmission: Non OEM transmissions are prohibited. Aftermarket internals are allowed. A clutch meeting min. SFI spec 1.1 or 1.2 is mandatory on all vehicles running 4500 rpm or more. All manual transmissions must be clutch assisted. Sequential shifters are prohibited. If running 4500 rpm or greater the vehicle must have a flywheel shield labeled as meeting minSFI spec 6.3 or greater. Applications for which an SFI spec flywheel shield is not available may use a properly attached SFI 4.1 or 4.2 blanket that completely covers the bellhousing: it must be attached to the block and extend rearward to the transmission with a min. six inch overlap where fastened.

Turbocharger: The turbo is limited to stock appearing OEM make specific only.Turbos from different years in the same make may be interchanged.

Water injection is prohibited.

All trucks must be street legal, licensed, and road worthy with working lights. No dealer tags.

Must have front bumper. No front weight bars. Any weight added must be secured in truck bed.

Trucks must look factory appearing. Only USA flags permitted. NOTHING OBSENE IS ALLOWED!

All trucks must start with a tight hitch. NO jerking of sled. Two consecutive attempts to start the sled will be allowed, if not pulled beyond 100 feet. No quick stopping.

. All decisions by judges are final

All other OTTPA safety rules apply

No passengers

Only winner of each class will be required to reweigh after the class has pulled.

3 minute limit (plus or minus) to hook after name is called to pull