Max. bumper height for First Division vehicles - 22".

Max. bumper height for multipurpose passenger vehicles and 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 to 9,000 lbs - 28" front and 30" rear.

Suspension may not be modified to cause front bumper height to vary more than 3" from rear bumper height.