4×4 vehicles with a total weight of 8,000 lbs or less have a suspension limit of 5 inches. Restraint systems cannot be longer than 2 inches from the standard. Note: The DOT FAQ lists the travel limits of 4 and 5 inches, 5 inches is correct. Texas has no specific rules for a vehicle`s steering system. Rear bumpers are mandatory on pickup trucks in Wisconsin. Cars must have rear bumpers in the same way they leave the factory. Car bumpers should be less than 2 inches from the height of the factory bumper, while truck bumpers should be less than 9 inches. Wisconsin requires adequate fenders and/or bibs on the front and rear tires to prevent splashing water. Tires can protrude up to 2 inches beyond the original fenders, but they must be covered by wing extensions.

Texas laws do not refer to wheel laws. The height of the frame is not mentioned in Texas regulations. There are no regulations for wheels in Wisconsin laws.