Engine

  • Stock engine only for make, model, and year of truck.

  • Diesel fuel only. No propane or water injection.

  • Turbo charger must be stock appearing for make of truck. Modifications are permitted but must pass a 2.55” plug test.

  • Any engine programmers are permitted.

  • Aftermarket air cleaner/intakes are permitted.

  • Exhaust must exit behind cab of vehicle and must be pointed upwards. Exhaust must have (2) 3/8 diameter rods/bolts inserted into exhaust in a cross pattern with both rods 90° from each other. Rods/bolts must be as close to the turbo as possible. Tech inspection committee will have final say on location.

  • Radiator must have a sufficient overflow reservoir.

  • No ice or ice water will be permitted on intercoolers.

  • Injection pump is limited to 1 stock appearing pump.


Hitch

  • Hitch height: 26” maximum.

  • Hitch point must have a 3.5” hole minimum.

  • Must be a Reese style hitch/receiver. No pulling from bumper. No shackles or clevises.

  • Hitch must use hitch pin. Bolts are prohibited.

  • Hitch must be stationary in all directions.

  • Hitch may be reinforced and supported for strength. No part of the hitch will be permitted forward of the centerline of the rear axle.

  • No component of the hitch may be connected or in contact with the rear axle.

  • Hitch must be the rearmost component on vehicle.


Chassis

  • Aftermarket or fabricated from bumpers are permitted. Front ballast will be permitted if hidden. No visible weight will be permitted.

  • No batteries are to be located inside cab of vehicle unless they are in a sealed and covered box.

  • Steering system modifications are permitted.

  • No hanging weights or brackets. Any weight must be located in the bed behind the cab and securely fastened.

  • No objects forward of the front bumper permitted.

  • Traction bars and third links are permitted provided they are bolted. Front of traction bars must have a tether strap to prevent the bar from touching the ground. Suspension must have a minimum of 1” of travel. Air bags or air shocks are prohibited.

  • Absolutely no electronic traction control devices.

  • Factory spec wheelbase only.

  • Complete factory beds only. Beds and toolboxes must be mounted securely. Any bed without a full floor must be covered.

  • DOT tires only. Max 35 x 12.50”. No cuts, bars, or siping. Rims may not exceed 12” wide. Aftermarket rims permitted.

  • No wheel spacers.

  • No tire chains.

  • U-joint shields and driveline hoops are mandatory. All u-joints must be covered with a 360° loop and be at least 6” wide constructed of 1/8” steel or 3/16” aluminum. Driveline hoops must be 360° loop and be at least 1” wide constructed of 1/8” steel or 3/16” aluminum.

  • One ton rear axle or less permitted. Dual rear wheels prohibited.

  • No open drivelines or drop boxes.

  • Fuel cells prohibited.

  • Brakes must be fully functional on all 4 corners of the vehicle. No driveline brakes permitted.

  • OEM transmission and transfer case only.


  • Any competitor may protest another vehicle within 10 minutes following the completion of the class. A full tech inspection will involve both the protested vehicle and the vehicle of the protestor. A $300 fee must accompany the protest. If the protested vehicle is found to be illegal, the protestor will be refunded $250 and the protested vehicle will be disqualified. If the protested vehicle is found to be legal, the protested competitor will receive $250. $50 of the protest fee will be assessed to Maumee Valley Pullers. If both vehicles are found to be illegal, both vehicles will be disqualified and the total protest fee will be assessed to Maumee Valley Pullers. Any vehicle found to be illegal will forfeit their purse money from the event back to Maumee Valley Pullers and will be allowed to run only exhibition from that point forward until proven to be legal.

  • The class winner may be subject to further tech inspection. If vehicle is found to be illegal or the driver chooses not to tech, they will then forfeit their purse money from the event back to Maumee Valley Pullers and will be allowed to run only exhibition from that point forward until proven to be legal.

Tech