Max. bumper height passenger vehicles - 22".

Max. bumper height for all other vehicles with a GVWR of:

•  4,500 lbs or less - 24"front and 26" rear;
•  4,501 to 7,500 lbs - 27"front and 29" rear;
•  7,501 lbs or more - 28"front and 30" rear.