6 Inch Lift Kit | Diesel | Fr D/s | C/o Vertex | Ford F-250/f-350 Super Duty (17-22)

Built for Super Duty diesel owners who want 6 inches of lift without sacrificing factory geometry — this Rough Country Coilover Conversion Lift Kit replaces your factory independent coil-shock setup with a precision-engineered suspension system that runs 35–37 inch tires while preserving smooth, predictable handling.

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" Coilover Conversion Kit Box — complete lift structural package designed for 2017–22 Super Duty 4WD models.
• Vertex 2.5" Adjustable Front Coilovers (pair) — nitrogen-charged monotube shocks with external reservoirs and 8-stage damping adjustment; 56% greater fluid capacity than average reservoir shocks for superior damping control and ride quality.
• Vertex 2.5" Rear Coilovers (pair) — matched rear units tuned for 6-inch lift geometry.
• Radius Arm Drop Brackets — precision-fit to factory mounts, correct caster angle to maintain stock handling and driveability without aftermarket steering inputs.
• 4.5" Block U-Bolt Kit — no overloads; fabricated for strength and durability.
• CV Front Driveshaft — diesel-spec driveshaft for 4WD models, accommodates altered suspension geometry and transfer-case re-indexing.
• Anti-Axle Wrap Rear Blocks — specially designed to eliminate common lift-block bind issues while maintaining stock ride quality.

Important notes

• Does NOT fit gas-engine models — diesel engines only.
• Does NOT fit dually models.
• Does NOT fit manual-shift transfer cases — automatic transmissions only.
• Only fits models equipped with rear factory contact overload springs.
• Does NOT work on models equipped with Tremor Factory Trim Package.
• Installation requires cutting and drilling; plan 6–10 hours for completion.

Why customers pick this at Road Runner

• Caster correction brackets preserve factory geometry and steering feel — no aftermarket steering components needed.
• Vertex Coilovers with 8-stage adjustability let you dial in ride comfort and handling to your load and terrain.
• CV driveshaft included — addresses the geometry change that a 6-inch lift creates on 4WD diesel trucks.
• Rough Country Lifetime Warranty backed by in-house expertise — we stand behind every install.
• Professional alignment performed in-house as part of every lift install, ensuring correct caster, camber, and toe.
• Installed by techs who work on Super Duties every week — no learning curve, predictable results.

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