Modifications affecting height of a vehicle

Modifications affecting height of a vehicle. (1) Modifications authorized by s. 347.455 , Stats., may not cause the front or rear bumper height of any vehicle to be altered more than the distance allowed by s. 347.455 , Stats., from the original height of the bumper as specified by the vehicle manufacturer. Four wheel drive vehicles and motor trucks with a gross weight of not more than 8,000 pounds may not be modified so as to cause the vehicles to ride more than a total of 9 inches above the height of the vehicles specified by the manufacturer combining alterations under s. 347.455 (2) , Stats., and changes in tire size under s. 347.455 (3) , Stats. In the absence of manufacturer’s specifications, every bumper shall meet the height standards established by s. Trans 305.18 (2) (a) . (2) Changes in the height of a vehicle shall be measured from the level surface on which the vehicle stands to any part of the vehicle. When measuring to a part of the vehicle body, consideration shall be given to specific modifications allowed by s. Trans 305.21 (3) in addition to alterations allowed by s. 347.455 , Stats. (3) The manufacturer’s specified height of any part of a vehicle may be determined from the data published by the manufacturer or other manufacturer publications, such as the owner’s manual, or by comparison with a similar model vehicle as normally delivered by the manufacturer. (4) No person may operate any vehicle which has a fixed part of the vehicle located in a position that would contact the road surface before the rim in the event of tire failure.