Suspension - no aftermarket springs. Weight minimum 2000 lb., over 2000 lb. Fuel injector cars will add 100 pounds. Lock differential, positive traction, or Detroit lockers. Fenders can be cut for tire clearance.
Cars can replace front and rear body parts with aftermarket parts.
All glass can be removed except windshield. Interior can be removed. 5. 4 point roll cage. Door panels can be removed. 4 left door bars and 3 right door bars joined together.