6 Inch Lift Kit | Radius Arm | No Ovld | Vertex | Ford F-250/f-350 Super Duty (17-22)

Built for Super Duty owners who want to maximize tire clearance while preserving factory handling and ride quality, this 6-inch radius arm lift kit delivers a complete suspension transformation. Run up to 37-inch tires, level the front with the rear, and maintain proper suspension geometry with Rough Country's precision-engineered radius arms and Vertex shocks.

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

• Radius Arm Kit Box — Precision-fit radius arms bolt directly into factory mounts for easier installation and factory-like suspension angles. At 27 lbs each, these upgraded arms feature durable rubber bushings for maximum vibration absorption.
• Radius Arm Upgrade Boxes (qty 2) — Additional radius arm components ensure proper geometry correction and caster alignment across the front suspension.
• Vertex 2.5 FR Shocks (qty 2) — Front adjustable reservoir shocks tuned for balanced on and off-road performance.
• Vertex 2.5 RR Shocks (qty 2) — Rear adjustable reservoir shocks that work in concert with the lift geometry for smooth ride quality.
• 6 Inch Coil Box — Lifted coil springs increase ground clearance while maintaining suspension compliance.
• 4.5 In Block U-Bolt Kit — Fabricated rear blocks are stronger and longer-lasting than cast alternatives, with anti-axle wrap design to prevent binding and maintain stock ride quality.
• Transfer Case Clocking Kit — Ensures proper transfer-case orientation after the suspension lift for correct driveline geometry.
• Universal U-Bolt Kit — Additional fastening hardware for secure rear block installation.

Important notes

• Does NOT fit gas engine models — diesel only.
• Does NOT fit dually models.
• Does NOT fit manual shift transfer cases.
• Does NOT fit models with 3.5" rear axle tube.
• Does NOT fit models equipped with rear factory contact overload springs.
• Does NOT fit models equipped with Tremor Factory Trim Package.

Why customers pick this at Road Runner

• Radius arm drop brackets preserve factory caster angles — crucial for maintaining proper handling and driveability after lift.
• Fabricated anti-wrap rear blocks eliminate common lift-kit problems while keeping the ride smooth and predictable.
• Rough Country Lifetime Replacement Warranty backed by our in-house expertise and parts availability.
• Professional installation by technicians who perform these lifts every week — alignment performed in-house as part of every lift install.
• Vertex shocks are application-valved for balanced performance on road and trail.
• Complete bolt-on kit means nothing is left to guesswork — everything you need ships in the box.

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