Lowering in Idaho
Idaho applies a rim-line test: no part of the vehicle other than the wheels may sit lower than the lowest point of any wheel rim.
Verified against primary sources · August 2026
What the law says
Idaho Code § 49-965 sets the rim-line test for lowered vehicles. § 49-966 separately requires bumpers at least 4.5 inches tall, capped at 22 inches on cars (tiering to 30–31 inches for four-wheel-drive vehicles up to 10,000 lb GVWR).
Specific Limits
- Rule
- no part other than wheels below the lowest point of any wheel rim
- Bumper min height
- 4.5 in tall
- Bumper height cars
- max 22 in
Frequently Asked Questions
Are lowering legal in Idaho?
What are the exact lowering limits in Idaho?
Street-legal lowering picks
Gear that helps you mod without a ticket in Idaho.
A conservative drop that keeps required ground clearance.
Shop on AmazonDial your height back up if an inspection says you're too low.
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