7. WALL THICKNESS OF TUBING AT LEAST.095.
8. NO EXHAUST PIPING ANYWHERE ON THE CAR.
9. WELDING OF CAGE, MUST MEET OF EXCEED INSPECTION.
10. DRIVERS HEAD WITH HELMET MUST BE BELOW MAIN HOOP WHEN BUCKELED IN SEAT.
WEIGHTS
1. LEAD WEIGHTS ONLY.
2. ALL WEIGHTS MUST BE PAINTED WHITE WITH CAR NUMBER ON WEIGHT.
3. TRACTOR WEIGHTS, BAR BELL WEIGHTS, OLD ENGINE CYLINDER HEADS, ETC. ARE NOT ALLOWED FOR WEIGHTS.
4. WEIGHTS MUST BE SECURELY MOUNTED BY USING ½” BOLTS, ONE ½" BOLT FOR EVERY 25 LBS. OF WEIGHT. EXAMPLE: 75 LB. WEIGHT REQUIRES THREE ½” BOLTS, ETC.
5. YOU CANNOT USE TAPE, WIRE, TIE WRAPS, ETC., TO MOUNT WEIGHTS.
PAINTING AND NUMBERS
1. ALL CARS MUST BE NEAT IN APPEARANCE WITH LETTERING AND NUMBERS.
2. HEIGHT OF NUMBERS ON SIDE OF CAR MUST BE READABLE AND 18" HIGH ON BOTH SIDES.
3. ROOF NUMBERS MUST BE 18" HIGH FACING GRANDSTANDS.
4. USE GOOD TASTE IN PICKING NUMBERS.
SUSPENSION
I. STOCK FRONT STUB FRAMES ONLY. MUST EXTEND FROM BUMPER REARWARD TO FIREWALL OR MID PLATE.
2. NO TUBULAR FRONT STUBS.
3. MAY RUN CHASSIS TAIL SECTION AND FRAME RAILS.
4. STEEL COILOVER SHOCKS ARE ALLOWED. NO ALUMINUM SHOCKS. EXTERNAL ADJUSTABLE OR TAKE APART SHOCKS ALLOWED. ALUMINUM COILOVER SPRING KITS ALLOWED. COILOVERS MUST BE MOUNTED, EITHER (BOTH) IN FRONT OF OR (BOTH) BEHIND REAR AXLE. NO STAGGERED COILOVERS (LEFT IN FRONT, RIGHT IN REAR OF AXLE, ETC.)
5. NO COILOVER ELIMINATORS.
6. MIN. OUTSIDE DIAMETER OF REAR COIL SPRINGS IS 2 1/2" (C/O TYPE) OR 4 1/2" (CONVENTIONAL TYPE)
7. FIBERGLASS OR STEEL LEAF SPRINGS ALLOWED MAY NOT BE ALTERED.
8. NO HALF LEAF TYPE SUSPENSIONS ALLOWED.
9. NO BIRD CAGES OR LEAF SPRING FLOATERS ALLOWED.
10. NO FIFTH ARM LIFT BARS.
11. NO REESE LIFT BARS.
12. NO TORSION BARS ALLOWED.
*13. ONE TRACTION DEVICE ALLOWED MOUNTED PARALLEL TO FRAME FRONT TO REAR (TOP VIEW) CAN BE MOUNTED LOWER IN FRONT (SIDE VIEW). ANY SPRING RUBBER BISKET SOLID TYPE BAR ALUMINUM ALLOWED.
14. ONE AXLE DAMPER SHOCK ALLOWED. MUST RUN PARALLEL TO FRAME RAILS. (FRONT TO REAR)
15. ONLY ONE SHOCK PER WHEEL.
16. NO ALUMINUM SHOCKS.
17. STRAIGHT OR J BAR TYPE PANHARD BAR ALLOWED.
18. WEIGHT JACKS/SCREWS ALLOWED (STEEL ONLY).
19. NO MEANS OF CHASSIS ADJUSTMENT FROM COCKPIT ALLOWED.
20. TUBULAR UPPER A-FRAMES ALLOWED. MUST BE STEEL, ALUMINUM INNER SHAFTS ARE ALLOWED.
21. NO ALUMINUM SUSPENSION PARTS ANYWHERE. (EXCEPT WHERE NOTED IN RULES)
*22. STOCK OR TUBULAR LOWER A-FRAMES ALLOWED (MUST BE STOCK LENGTH AND IN STOCK LOCATION)
23. FRONT CROSS MEMBER MUST BE STOCK AND LEFT IN STOCK LOCATION. MAY BE NOTCHED FOR FUEL PUMP.
24. NO AIR SHOCKS.
25. STOCK OR FABRICATED SPINDELS ALLOWED.
26. WIDE FIVE HUBS ALLOWED OR STEEL WIDE FIVE ADAPTERS ALLOWED.
27. CAST ROTORS ONLY, NO ALUMINUM. MINIMUM THICKNESS .810.
28. ONLY ONE SPRING PER SIDE ON REAR. NO MONO LEAF/COIL COMBO SYSTEMS ALLOWED. MONO LEAFS BY THEMSELVES ARE ALLOWED. MUST HOLD UP WEIGHT OF THE CAR.
STEERING
1. RACING TYPE STEERING WHEEL WITH A QUICK RELEASE IS HIGHLY RECOMMENDED.
2. STOCK RACK AND PINION STEERING ONLY. NO RACING TYPE ALLOWED.