Motor must match pickup make.
OEM fuel systems only. EFI allowed, factory cast (OEM) heads only. **
No weight bars on front. Vehicle must have front bumper, and weight added must be in the pickup box.
No solid or blocked suspension or ladder bars. Must be on springs. Lift kits allowed. Must use stock frame and running gear.
Must pull from rear bumper or trailer hitch.
Must be licensed. No class jumping allowed.
480 cubic inch limit.* Dual plane intake only, no air gap type intake manifolds allowed. An exception to this rule is if vehicle was originally equipped with a GM 8.1 liter or Dodge 8.0 liter engine, these will be allowed.
Cast iron exhaust manifolds only, unless truck was factory equipped with tubular manifolds.
Vehicles must have an exhaust system with muffler(s), 3” diameter max. Exhaust must exit at least 12” behind cab.
No Profab-type transmission conversions allowed.
Vehicle must have DOT approved tires, no larger than 33 inch.
** Where “OEM” is specified in this document, it means that part is the same make and model year as the truck.
Trucks must have D.O.T. street legal tires. No bar or tractor tires. Maximum tire allowed is 35“ in diameter.
May run one 4-barrel carb, and aluminum intake. Must have cast iron heads and block. Motor must match pickup make.
No solid or blocked suspension or ladder bars. Must be on springs. Lift kits allowed. Must use stock frame and running gear.
480 cu. in. engine limit! No alcohol fuel or Dominator carbs allowed. Must be naturally aspirated
Vehicle must have mufflers. Exhaust must exit past the driver‘s compartment.
May cut inside of box, outside must appear stock(no cutting on outside of box) Must have safe floor or tonneau cover.
Driver must wear SFI Fire Suit (Jacket and Pants)
Must have at least two-wheel brakes, and working brake and reverse lights.
Hitch rules: a 30% hitch may be used, axle center to hook point. Please also refer to rules #5 and #6 in the General rules.
Radiator and front grill must be in the stock location.
Must have full stock steel floor in cab. No cutting of cab.
Wheels must be a minimum of 6 inch diameter by 2 inches wide.
Wheels must support wieght of vehicle.
Wheels may be removed or raised for ground clearance when vehicle is not on competition track.
Wheels must be atleast 3 feet apart.
Trucks must have street legal tires. No bar or tractor tires. Tires must have D.O.T. numbers to be legal.
May use one 4-barrel carb, and aluminum intake. Headers may protrude through the hood.
530 cubic inch limit on engine displacement.
Motor must match pickup make and be behind the stock grill location.
Vehicles must use front wheelie wheels no more than 6 inches off the ground, within 6 inches of the forward-most part of the vehicle.
Wheels must be a minimum of 6 inches in diameter by 2 inches wide.
Wheels must support the weight of the vehicle.
Wheels may be raised or removed for the purpose of ground clearance when vehicle is not on competition track.
Wheels must be at least 3 feet apart.
Four motor mounts or torque chains required on motor. Motor must be naturally aspirated.
Driver must wear a SFI fire suit (jacket and pants). No nitrous oxide or alcohol allowed.
May use military/commercial axles in rear only.
30% hitch mat be used, axle center to hook point. Please also refer to rules #5 and #6 in the General rules.
Four motor mounts or torque chains required on motor, and must be behind the stock grill location.
650 cubic inch limit on engine displacement. Motor must be naturally aspirated.
Must use bar/tractor type tires only. No D.O.T. tires allowed. Max of 35” tires.
Driver must wear a SFI fire suit (both jacket and pants) and a helmet.
Vehicles must use front wheelie wheels no more than 6 inches off the ground, within 6 inches of the forward-most part of the vehicle.
Wheels must be a minimum of 6 inches in diameter by 2 inches wide.
Wheels must support the weight of the vehicle.
Wheels may be raised or removed for the purpose of ground clearance when vehicle is not on competition track.
Wheels must be at least 3 feet apart.
Hitch must extend beyond rear of the truck.
Four motor mounts or torque chains required on motor.
Driver must wear a SFI fire suit (both jacket and pants) and a helmet. Any tires legal. Any type of suspension allowed.
Must have hood, front fenders, doors, box sides or legal type flat bed.
No bare frames allowed. Engine must be within engine compartment.
For safety reasons, hitch must extend beyond rear of the truck.
There will be a 1% grace allowance in weight for the 4000 lb. open class
No motor swaps allowed. Gas engines only
No weight bars on front of vehicle; must have front bumper, and weight added must be in pickup box.
Must pull off of rear bumper or trailer hitch.
Must be licensed. Lift kits allowed.
Truck can only pull in the “Stock Class”. No jumping to other classes.
Trucks must have working brake and backup lights.
STOCK CLASS MEANS STOCK TRUCKS, NO MODIFICATIONS.
No weight bars on front; must have front bumper, and weight added must be in pickup box. Dual tires allowed.
Must pull off of rear bumper or trailer hitch, and be licensed.
Maximum of one turbocharger allowed.
No aftermarket intake manifolds, no aftermarket turbochargers.
No added pressurized fuel additives allowed. This includes LP and nitrous.
Trucks may be inspected before being allowed to pull.
STOCK CLASS MEANS STOCK TRUCKS, NO MODIFICATIONS.
8,000 lb. weight limit
Front hanging weights allowed with no weight extending more than 60” forward from the centerline of the front axle
Maximum height of hookup and pulling point cannot exceed 26" to top of drawbar.
Drawbar must be ridged in all directions (may be adjustable). Hitch will be measured at the hook point.
Automatic disqualification for any weight falling off while hooked to the sled.
All vehicles must have working brakes.
Helmets must be worn
Fire jacket must be worn
Must have fire extinguisher mounted within reach of driver.
Driver must be in drivers seat when engine is running.
Driver must wear a seatbelt or restraint system.
No passengers allowed
No nitrous oxide or LP or methanol will be allowed
Water only injection allowed
Must have air & fuel shut off installed
Exhaust must have 2 (two) grade 5 bolts in a crosshair pattern just before exit of pipe.
Bar tires are allowed
No fuel tanks, pumps or lines in the driver compartment in all classes unless factory installed
Must have 360-degree drive shaft loops in the middle and each end of each shaft and 360 degree shields completely covering the u-joint for all power delivering shafts.
Loops and shields must be able to retain and all moving parts of drive shaft, u joints, yokes, slip joints etc., No cast material allowed for loops or shielding, no welding to cast housings, no threaded rod or rebar may be used in loops or supports, loops and shielding must be strong and secure and of quality workmanship and is the responsibility of the owner for maintenance and proper performance.
Must have SFI approved bellhousing on clutch. SFI approved shield on automatic transmission body or SFI blanket from back of engine block to rear most part of transmission and all automatics must have SFI flexplate. SFI label is an inspectable item, and must be exposed.
Must have Harmonic balancer shield, 360 degrees, plus-straps to prevent forward movement, or SFI approved damper.
Must have motor side shields if fender liners are removed, vehicle must have radiator, grill or mesh in front on motor.
Must have hood, fenders, doors, windshield, rear window and seat belt must be worn.
Must have a complete firewall, steel, aluminum, or lexan. Only holes allowed are that for controls and wiring.
Rules are subject to change without notice.
Points are awarded as noted in the Championship Rules.
Long Pants and shoes covering the entire foot required
REMINDER: ALL GENERAL RULES APPLY TO ALL CLASSES.
ENGINE PUMPING RULES
WESTERN WISCONSIN TRUCK PULLERS reserves the right to pump any vehicle in that class that places. WESTERN WISCONSIN TRUCK PULLERS will also pump a vehicle at the request of 3 (three) pullers in that class. Protesting drivers will each put up $25 of which $30 will go to the "owner" of the pump. The balance going to the vehicle being pumped if found to be legal. If found not to be legal, the balance will be returned to the protesting drivers. The protest must be lodged at the end of the run before vehicle leaves the track and before the class pay out is made. In both cases, if the vehicle is found to be illegal or refuses to being pumped, the vehicle WILL BE DISQUALIFIED AND NO PAYOUT MADE. The vehicle also will not be allowed to compete at any future WESTERN WISCONSIN pulls until he or she agrees to being pumped!
WESTERN WISCONSIN TRUCK PULLERS is governed by the Executive Council, made up of appointed representatives from each of the classes. The council will address any or all concerns pertaining to the rules of WESTERN WISCONSIN TRUCK PULLERS.