6 Inch Lift Kit | Gas | No Ovld | C/o Vertex | Ford F-250 Super Duty (15-16)

Built for F-250 Super Duty owners who want maximum ground clearance and tire capability without sacrificing factory ride quality, this 6-inch coilover conversion lift kit replaces your factory independent coil-shock setup with Rough Country's adjustable Vertex Coilovers. Run 35–37 inch tires while maintaining proper suspension geometry through radius arm drop brackets that preserve factory caster angles and handling characteristics.

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

• 548 Kit Box — Precision-fit structural components for your F-250 that bolt directly to factory mounts.
• Block U-Bolt Kit (No Overloads) — Heavy-duty rear blocks engineered to eliminate axle wrap while maintaining stock ride quality.
• 6" Coilover Conversion Kit — Complete front coilover assembly to replace the factory independent coil-shock design.
• Vertex 2.5" Adjustable Front Coilovers (Left & Right) — 8-stage adjustable monotube shocks with external reservoir, 56% greater fluid capacity than standard reservoir shocks, paired with caster-corrected radius arm drop brackets.
• Vertex 2.5" Rear Coilovers (Pair) — Nitrogen-charged monotube design for balanced on- and off-road performance and damping control.

Important notes

• Fits 2015–2016 F-250 Super Duty 4WD only. Does not fit F-350 models, dually models, or gas-engine-equipped trucks.
• ONLY fits vehicles equipped with rear factory contact overload springs. Verify your truck's rear suspension configuration before ordering.
• Installation requires cutting and drilling; estimated 6–10 hours recommended.

Why customers pick this at Road Runner

• Coilover conversion preserves factory suspension geometry through precision-fit radius arm drop brackets — proper caster angle means your truck drives like stock, not sketchy.
• Vertex monotube design with external reservoir outperforms standard shocks; 8-stage adjustability lets you dial in ride quality for pavement, trails, or towing.
• Fabricated rear blocks are stronger and longer-lasting than cast alternatives; anti-axle wrap design keeps the ride smooth without the common lift-block pitfalls.
• Rough Country lifetime warranty backed locally — we stand behind these kits with in-house service and support.
• Alignment performed in-house as part of every lift install — your truck leaves here dialed in and ready to go.
• Our techs install these coilover kits every week; you're getting seasoned hands who know the cuts, the drilling sequence, and how to preserve driveline geometry.

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