RULES FOR 2008
“PRO STOCK” GAS 4X4 7500 LB.
ENGINES & DRIVETRAIN
- ALUMINUM HEADS PERMITTED, BLOCKS MUST BE CAST IRON.
- ALUMINUM INTAKES AND SINGLE FOUR BARREL CARBURETORS PERMITTED
- NO TURBOS, SUPERCHARGERS, OR INJECTION SYSTEMS.
- HEADERS PERMITTED.
- REAR SIDE OF BLOCK MUST BE 12” OR MORE BEHIND THE CENTER OF THE FRONT AXLE.
- 650 CU. IN. LIMIT
- PROFAB TRANSMISSIONS AND TRANSFERCASES PERMITTED
- FRONT ENDS MUST BE OEM. ROCKWELL REAR ENDS PERMITTED.
CHASSIS
- FACTORY FRAMES 1 TON OR LESS REQUIRED
A)4-door trucks permitted but must be same maxium wheel base as OEM - SOLID SUSPENSION PERMITTED, NO REAR LEAF SPRINGS REQUIRED.
WEIGHTS
- FRONT WEIGHTS AND BRACKETS MAY NOT EXTEND MORE THAN 60 INCHES FORWARD FROM THE CENTER FRONT AXLE.
HITCH
- HITCH MUST BE A MINIMUM OF 36” FROM THE CENTER OF THE REAR AXLE AND A MAXIMUM OF 24” OR 26” HIGH.
- HITCH CAN BE ADJUSTABLE, BUT IT MUST BE STATIONARY IN ALL DIRECTIONS WHILE PULLING.
TRUCK
- MUST HAVE FACTORY CAB AND DOORS.
- FIBERGLASS HOODS, HOOD SCOOPS, FENDERS, AND BEDSIDES PERMITTED.
- FLAT BEDS ARE PERMITTED AS LONG AS THEY ARE FACTORY BUILT OR HEAVIER.
TIRES
- ANY STREET LEGAL DOT APPROVED TIRE.
- MAXIMUM TIRE SIZE 36” TALL AND 16” WIDE
- CUT AND SHARPENED TIRES ARE ALLOWED
SAFETY
- NO NITROUS OR ANY OTHER PRESSURIZED FUELS.
- DRIVE SHAFT LOOPS, U-JOINT SHEILDS, BLOWPROOF
- BELLHOUSING OR TRANSMISSION BLANKET AND KILL SWITCHES ARE REQUIRED.
- DRIVERS ARE REQUIRED TO WEAR HELMET AND FIRE SUIT.