Yes, Lift kits exceeding 6 inches are legal in Montana, provided they comply with federal safety standards and state vehicle equipment regulations. The Montana Department of Justice (DOJ) enforces federal FMVSS guidelines, while local jurisdictions may impose additional restrictions. Recent 2026 amendments to MCA §61-9-402 require annual inspections for modified vehicles, including lift kits, with heightened scrutiny for lifts over 6 inches.
Key Regulations for Lift Kits Over 6 Inches in Montana
- Federal Compliance: Lift kits must adhere to FMVSS 108 (lighting) and FMVSS 126 (stability control), ensuring headlight aim, brake system integrity, and tire clearance remain within federal limits. Non-compliant modifications void federal safety certifications.
- Montana-Specific Inspections: Vehicles with lifts over 6 inches require annual safety inspections at DOJ-certified stations, verifying suspension modifications do not compromise steering geometry or tire-to-body contact.
- Local Ordinances: Counties like Gallatin and Missoula impose additional restrictions on lift heights for off-road use, mandating permits for lifts exceeding 8 inches. Violations may result in fines or registration suspension under MCA §61-9-403.