1. Minimum drawbar length 18 inches from center of rear axle to point of hook. Maximum height 30 inches from top of hitching device. Drawbar must be rigid in all directions. Hitch must be a straight line hitch. Hooking point minimum of 7/8 inch thick width of three inch opening with 6 inches on either side and 12 inches above for hooking clearance. Pivot point must not be farther foward than center of rear end.

2. No weights rearward more than 12 inches from hitching point or past rear of vehicle.

3. Any truck or van body allowed. Body must retain OEM appearance.

4. Front and back glass or Plexiglas required.

5. All vehicles must have complete firewall between driver and engine compartment.

6. All trucks must have stock-appearing hood and grill.

7. Trucks must have van-pickup bed or flatbed in place.

8. Original truck frame or fabricated frame can be used.

9. Tire size maximum tread width 18 inches or 18.4 x 16.1.

10. One naturally aspirated automotive type engine 530 cubic inch limit maximum allowed. All engines must remain in engine compartment. Maximum eight cylinders. Two valves per cylinder maximum.

11. Two front and rear motor mounts required. Stock mounting position will count as two: either front or rear. All engines will have side shields full length of block, from bottom of headers to bottom throw of crank (minimum of .060 inch thickness).

12. 2 wheel pro stock cannot start class.

13. All planetary rear ends must have fully enclosed drive shafts.

14. All exhausts must have discharge vertically, minimum height one foot from bottom of bend to top of pipe. Vertical is being within 10% of plumb in any direction.

15. Wheelie bars are required. Minimum of two inches behind furthermost point of tire. A five-inch square pad on the ground. Must support weight of truck.

16. Vehicle cannot have four-wheel drive front axle.

17. Maximum length of vehicle 15 feet from center of rear axle to forward most position of vehicle. Front tire must be behind front bumper,remain in fenderwell. Maximum width eight feet at furthest point.

18. All weights must stay stationary while in competition.

19. Full fire suit,jacket/pants or 1 piece.

20. All general rules apply. No rule changes until Fall 2007.