6 Inch Lift Kit | Diesel | Ovld | M1 | Ford F-250/f-350 Super Duty 4wd (17-22)

Built for F-250 Super Duty diesel owners who want maximum ground clearance without sacrificing ride quality, this 6-inch lift kit delivers a full suspension transformation. You'll clear 35–37 inch tires while radius arm drop brackets preserve factory caster geometry — the critical detail that keeps your truck handling like stock, not like a modified rig.

Installed and serviced at Road Runner Wheels & Tires. Most lift kits go in the same day. Call (678) 400-6467 to schedule.

What's included

• 6" Coil Box — lifted springs engineered to raise the front end and level the truck with the rear, maintaining factory ride geometry.
• Radius Arm Drop Brackets — allow proper caster alignment to preserve handling and prevent premature tire wear.
• Fabricated Anti-Wrap Rear Blocks — stronger than cast alternatives, designed to prevent axle wrap and binding while maintaining stock ride quality.
• 6.5" Block U-Bolt Kit — overload-rated hardware to secure rear blocks with maximum durability.
• M1 Monotube Shock Pair (2 sets) — dual N3-series shocks valved for balanced on- and off-road performance.
• Transfer Case Clocking Kit — re-indexes the transfer case to maintain proper driveline angles after the lift.

Important notes

• Does NOT fit F-350 dually models.
• Does NOT fit manual shift transfer cases.
• Does NOT fit gas engine models — diesel only.
• Does NOT fit models with 4" rear axle tubes.
• ONLY fits models equipped with rear factory contact overload springs.
• Does NOT work on models with the Tremor Factory Trim Package.

Why customers pick this at Road Runner

• Caster correction built in — radius arm drop brackets preserve factory handling angles so your truck drives like stock, not modified.
• Transfer case re-indexing included — maintains driveline geometry and prevents binding or premature wear.
• Rough Country lifetime warranty backed locally by technicians who install these every week.
• Professional alignment performed in-house as part of every lift install — no separate trip needed.
• Fabricated components engineered to outlast cast alternatives and resist axle wrap.

Ready to build it? Call (678) 400-6467. Hablamos Español.