Lift Kits in Idaho
Idaho requires bumpers at least 4.5 inches tall and caps their height at 22 inches front and rear on passenger cars, rising by weight class for trucks and multipurpose vehicles to as much as 30 inches front and 31 inches rear.
Verified against primary sources · August 2026
What the law says
Heights are measured laden on a level surface to the highest point on the bottom of the bumper. Beware online tables that misattribute Hawaii's 29/33/35-inch tiers to Idaho.
Specific Limits
- Bumper max cars
- 22 in front / 22 in rear
- Bumper max trucks
- 24/26 in up to 4,500 lb; 27/29 in 4,501-7,500 lb; 28/30 in 7,501-10,000 lb; 30/31 in four-wheel-drive or dual-wheel
- Bumper min vertical height
- 4.5 in
Frequently Asked Questions
Are lift kits legal in Idaho?
What are the exact lift kits limits in Idaho?
Street-legal lift kits picks
Gear that helps you mod without a ticket in Idaho.
A modest lift that stays under most state frame- and bumper-height limits.
Shop on AmazonGoing taller? Check your state's bumper and frame height caps before you order.
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