IS MY MOD LEGAL?

Lift Kits in Massachusetts

Conditional

Massachusetts limits vehicles at or under 10,000 lb GVWR to 2 inches of change from the manufacturer's height — except four-wheel-drive vehicles, which get a formula: maximum mechanical lift in inches equals wheelbase times wheel track divided by 2,200.

Verified against primary sources · August 2026

What the law says

For qualifying four-wheel-drive vehicles, tire outside diameter may also increase by up to that same figure, and the combined mechanical plus tire lift may not exceed the sum of the two allowances. This is the most mathematically specific lift rule in the country.

Specific Limits

Max variance
2 in from the manufacturer's height
Four wheel drive formula
max mechanical lift in inches = wheelbase x wheel track / 2200

Statute

540 CMR 6.00 (see 6.04, 6.05)

Read the statute →

Frequently Asked Questions

Are lift kits legal in Massachusetts?
Massachusetts limits vehicles at or under 10,000 lb GVWR to 2 inches of change from the manufacturer's height — except four-wheel-drive vehicles, which get a formula: maximum mechanical lift in inches equals wheelbase times wheel track divided by 2,200.
What are the exact lift kits limits in Massachusetts?
Max variance: 2 in from the manufacturer's height. Four wheel drive formula: max mechanical lift in inches = wheelbase x wheel track / 2200. Source: 540 CMR 6.00 (see 6.04, 6.05).

Street-legal lift kits picks

Gear that helps you mod without a ticket in Massachusetts.

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