3 Inch Lift Kit | Coilover Conversion | Diesel | Ford F-250 Super Duty (17-22)

Built for F-250 Super Duty diesel owners who want 3 inches of lift without sacrificing factory geometry and ride quality — this Rough Country Coilover Conversion Lift Kit replaces the factory independent coil-shock setup with adjustable Vertex Coilovers and radius arm drop brackets that preserve caster angles. You'll gain the clearance for 33"–34" tires while maintaining 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

• Vertex 2.5" Adjustable Coilovers (pair) — nitrogen-charged monotube design with external reservoir and 8-stage damping adjustment; delivers 56% greater fluid capacity than standard reservoir shocks for superior damping control and durability.
• Radius Arm Drop Brackets — precision-engineered to bolt into factory mounts and maintain proper caster geometry, preserving factory-like handling and driveability.
• Track Bar Drop Bracket — keeps suspension angles within spec after lift height is added.
• 2" Lift Blocks (rear) — fabricated design offers greater strength and longer lifespan than cast alternatives.
• U-Bolts — OEM-grade fasteners for secure rear suspension attachment.
• V2 Monotube Shock Pair — premium damping control matched to the coilover conversion.
• Complete Hardware Kit — all bolts, nuts, and fasteners needed for installation.

Important notes

• F-250 Super Duty 4WD diesel only. Does not fit gas engine, F-350, or dually models.
• Does not work on trucks equipped with the Tremor Package.
• Factory top-mount overload springs (if equipped) must be removed.
• Trucks with 2-piece rear driveshaft require a carrier-bearing drop bracket (sold separately).
• Installation requires cutting and drilling; professional setup ensures proper geometry and alignment.

Why customers pick this at Road Runner

• Geometry corrected by drop brackets — caster angles stay close to factory spec so your Super Duty handles like stock.
• Rough Country lifetime warranty backed locally — we're authorized dealers and stand behind every kit we install.
• Professionally installed by techs who perform these conversions every week — cutting, drilling, and geometry work done right the first time.
• Alignment performed in-house as part of every lift install — no separate trip to a third party.
• Vertex Coilover performance — 8-stage adjustment and 56% greater fluid capacity mean you dial in ride feel and handle anything from street to trail.

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