1. Homemade type tractors are permitted

2. Maximum Automotive or Marine OEM engine Specifications:

• Engine shall not exceed 165 in ³ (cubic Inch) (After Modifications)
• 4 Cylinders

3. All other modifications allowed.

4. Tractors must have safety shields in place. All tractors with flywheels must have AHRA, NHRA or SEMA approved housing or the housing must be shielded 360° with ¼" steel

5. All drive-train connections must be shielded in like manner with ¼" minimum aluminum

6. All automatic transmissions shall have AHRA, NHRA or SEMA approved scatter blanket or scatter shield or be shielded same as non-approved flywheel housing

7. All harmonic balancers shall be shielded 360° with minimum ¼" aluminum. Inside diameter of shield shall not exceed 2" over the outside diameter of balancer. Provisions, such as tabs, bars, expanded metal, must be used to contain balancer inside shield.

8. All tractors must have stable fenders that cover at least 6" of tire width.

9. All tractors shall have a minimum 3/8" cable securely fastened to the differential housing or frame, extending around hitch so that it lies within hook.

10. Supercharger Mounting/Restraint

• Must utilize aluminum studs to mount supercharger to intake manifold
• The restraint system shall consist of 4 separate straps, one on each corner of the supercharger, with each strap securely fastened to the engine by means of its own attachment bracket
• Each bracket must use a minimum 5/16 Grade 5 bolt

11. Maximum tire size: 26x12x12

12. All automatic transmissions must have reverse lockout