6 Inch Lift Kit | Diesel | Ovld | C/o V2 | Ford F-250 Super Duty (15-16)

Built for Ford Super Duty diesel owners who want serious ground clearance without sacrificing ride quality, this 6-inch coilover conversion lift kit replaces your factory independent coil-shock setup with adjustable Vertex 2.5-inch monotube coilovers. You'll run 35–37 inch tires while maintaining factory suspension geometry through precision-engineered radius arm drop brackets that preserve caster angles and drivability.

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 — Front suspension frame and mounting hardware for seamless bolt-on integration.
• Block U-Bolt Kit — Rear overload spring blocks engineered to eliminate common lift-block flex while maintaining stock ride quality.
• 6" Coilover Conversion Kit — Complete front-end conversion assembly with precision-fit radius arm drop brackets for correct caster geometry.
• Vertex 2.5 Adjustable Front Coilovers (pair) — Nitrogen-charged monotube shocks with external reservoirs, 56% greater fluid capacity than standard designs, and 8-stage damping adjustment for both on and off-road performance.
• V2 Monotube Shock Pair — Valved for balanced damping across all driving conditions.

Important notes

• Fits 2015–2016 Ford F-250 Super Duty diesel 4WD only — does not fit F-350, dually, or gas-engine models.
• Requires vehicles equipped with rear factory contact overload springs.
• Installation requires cutting and drilling; 6–10 hours estimated.
• Maximum tire size is 37 inches.

Why customers pick this at Road Runner

• Radius arm drop brackets maintain factory caster angles — no handling compromise after install.
• Adjustable monotube coilovers let you dial in your ride from street comfort to trail aggression without swapping components.
• Rough Country lifetime warranty against manufacturer defects, backed locally by our team.
• Professional installation by techs who build these kits every week — geometry dialed in on first try.
• Alignment performed in-house as part of every lift install — no separate alignment shop visit needed.

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