4.5 Inch Lift Kit | W/o Overloads | C/o Vertex | Ford F-250/f-350 Super Duty (08-10)

Built for Ford F-250/F-350 Super Duty owners who want serious lift without sacrificing ride quality — this 4.5-inch coilover conversion kit replaces the factory independent coil-shock setup with Rough Country's 2.5-inch Vertex Coilovers, purpose-engineered to preserve suspension geometry. You'll gain up to 35-inch tire clearance while maintaining the smooth, composed handling you expect from a factory-engineered vehicle.

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 Front Coilovers (left & right, 4.5"–6" range) — nitrogen-charged, 8-stage adjustable monotube shocks with external reservoirs for 56% greater fluid capacity and superior damping control compared to standard reservoir designs.
• Vertex 2.5 Rear Coilovers (pair, 6" fixed) — matched damping and monotube construction to complement the front suspension and maintain balanced handling.
• Radius Arm Drop Brackets (pair) — precision-fit brackets that bolt to factory mounts and preserve critical caster angles, keeping your truck's steering feel and drivability true to the factory setup.
• 6.5-inch Block U-Bolt Kit — rear suspension geometry correction hardware.
• 4.5" Kit Box & Coilover Conversion Hardware — all fasteners and brackets needed to integrate the coilover system into your factory mounts.

Important notes

• Does NOT fit V-8 gas engine models.
• Does NOT fit dually models.
• V-10 gas engine models will require exhaust modification to clear the front driveshaft.
• If your vehicle is equipped with rear overload leafs, they must be removed as part of this conversion.

Why customers pick this at Road Runner

• Professional radius arm drop brackets correct caster geometry — no factory-handling compromise after lift.
• Vertex Coilovers deliver adjustable damping tuned for both street and off-road use — one shock handles it all.
• Installed by technicians who perform these conversions every week — precision fitment and alignment included.
• Rough Country's limited lifetime replacement warranty backed locally — structural and workmanship defects covered from day one.
• In-house alignment performed as part of every lift install — your steering and tire wear stay dialed in.

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