6 Inch Lift Kit | Diesel | Ovld | C/o Vertex | Ford F-250 Super Duty (11-14)

Built for Ford Super Duty diesel owners who want 6 inches of lift without sacrificing factory ride quality, this Rough Country coilover conversion kit replaces the factory independent coil-shock setup with adjustable Vertex 2.5-inch monotube coilovers and precision-engineered radius arm drop brackets. You'll run 35–37 inch tires while preserving proper suspension geometry and 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" Kit Box — Coilover Conversion — Complete front conversion brackets and hardware for the 11–14 Super Duty platform.
• Vertex 2.5 Adjustable Front Coilovers (pair) — Nitrogen-charged, 8-stage adjustable shocks with monotube design and external reservoir for 56% greater fluid capacity and superior damping control.
• Vertex 2.5 Rear Coilovers (pair) — Matching 6-inch rear coilovers to level the truck and maintain geometry.
• Radius Arm Drop Brackets — Precision-fit brackets that allow proper caster correction and factory-like suspension angles for handling and driveability.
• Block U-Bolt Kit with Anti-Axle Wrap Rear Blocks — Fabricated rear blocks stronger and longer-lasting than cast alternatives, engineered to eliminate lift-block binding while preserving stock ride quality.

Important notes

• This kit does not fit F-350 or dually models — confirm your vehicle is a 2011–2014 4WD F-250 Super Duty before ordering.
• You must verify whether your truck is equipped with a factory contact overload spring on the rear leaf springs; this affects block fitment and ride.
• Diesel models: installation is straightforward. Gas models may require exhaust modification to clear the front driveshaft after lift.
• 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 geometry — your truck handles like a lifted truck should, not like a geometry disaster.
• Rough Country's lifetime replacement warranty backed by local technicians who service these kits every week.
• Vertex coilovers are 8-stage adjustable — fine-tune ride height and damping to your terrain and driving style without a trip back to the shop.
• Professional alignment performed in-house after every lift install — no surprises down the road.
• Same-day installation keeps your truck out of the shop and on the road.

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