4.5 Inch Lift Kit | Fr D/s | C/o V2 | Ford F-250/f-350 Super Duty (17-22)

Built for Ford Super Duty diesel owners who want maximum clearance and a commanding stance without sacrificing ride quality, this 4.5-inch coilover conversion lift kit replaces the factory independent coil-shock setup with adjustable Vertex monotube coilovers. You'll gain the height to run 33–35 inch tires while maintaining proper suspension geometry through radius arm drop brackets engineered for correct caster angle — the key to preserving factory handling and driveability.

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

• Kit box for Ford Super Duty (2017–2022) — main structural assembly and mounting hardware.
• 4.5-inch block kit with coilover conversion plate — raises the chassis and integrates the new coilover mounting points.
• Radius arm drop brackets (pair) — bolt to factory mounts and maintain proper caster geometry for handling and tire wear.
• Vertex 2.5-inch adjustable monotube coilovers (front pair) — 8-stage damping adjustment, 56% greater fluid capacity than standard reservoir shocks, nitrogen-charged for consistent performance across compression and rebound.
• V2 monotube shock pair — rear dampers tuned to match the front coilover behavior.
• CV front driveshaft (diesel, 4WD) — replaces the factory shaft to accommodate the geometry change and prevent binding.
• Fabricated rear lift blocks with anti-axle-wrap geometry — stronger and longer-lasting than cast alternatives, eliminate common lift-block ride issues, and preserve stock ride quality.
• Universal u-bolt kits — secure the blocks to the axle housing.

Important notes

• 10-speed transmission models require dial-pin removal before installation.
• Diesel engine only — does not fit gas Super Duty models.
• 4WD models only — does not fit dually configurations.
• Automatic transmission only — does not fit manual shift transfer cases.
• Requires factory rear contact overload springs — verify your truck has them before ordering.
• Not compatible with the Tremor Factory Trim Package.
• Installation requires cutting and drilling; plan 6–10 hours for completion.

Why customers pick this at Road Runner

• Radius arm drop brackets preserve factory caster angle — no handling surprises after the lift.
• Vertex coilovers offer 8-stage damping adjustment so you dial in ride comfort and load-carrying capability to your preference.
• CV driveshaft included — corrects the front-end geometry change and eliminates a common retrofit headache.
• Rough Country's limited lifetime warranty backed by a local dealer you can call anytime with questions or warranty claims.
• Professional installation and in-house alignment performed as part of every lift install — your truck leaves geometrically correct.

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