6 Inch Lift Kit | Diesel | Radius Arm | C/O Vertex | Ford F-250 Super Duty (11-14)

6-Inch Radius Arm Coilover Conversion Lift Kit for Ford F-250 Super Duty (2011-2014) — Vertex C/O

Take your diesel Ford F-250 Super Duty (2011–2014) to new heights with Rough Country’s 6-inch Radius Arm Coilover Conversion Suspension Lift. This all‑inclusive kit transforms your truck by delivering bold ground clearance while preserving a smooth, factory-like ride—now you can run up to 37-inch tires with confidence.

Why this Radius Arm Coilover Conversion stands out

• Factory-geometry preservation: Precision-fit Radius Arms bolt into the factory mounts, keeping suspension angles near stock for predictable handling and a comfortable daily drive.
• Durable, purposeful components: Radius Arms weigh ~27 lb each and use rugged rubber bushings to maximize vibration absorption and long-term durability.
• Dominant coilover conversion: Replace the stock independent coil/shock with a 2.5-inch piston Vertex Coilover—nitrogen-charged, eight-stage adjustable, and built on a monotube design with an external reservoir for enhanced damping.
• Superior fluid capacity: Vertex coilovers offer 56% more fluid capacity than the average reservoir shock, promoting cooler operation and consistent damping under demanding use.
• Sturdy mounting hardware: Top-mounted reservoir brackets and coil-over mounts crafted from 1/4-inch steel for lasting rigidity under torque and terrain abuse.
• All-inclusive, ready to install: This kit provides everything needed for a total transformation, simplifying the upgrade process.

Performance and tire compatibility

With the 6-inch lift, you can fit up to 37-inch tires, expanding off-road capability without sacrificing on-road comfort. The Vertex Coilovers’ monotube design delivers precise, responsive damping control, ensuring stable handling on dirt, gravel, and pavement. Eight-stage adjustability lets you tailor the ride to your terrain and driving style.

Installation and fitment

Note: Installation requires cutting and drilling. Estimated 6–10 hours to complete, typically feasible at home with standard tools and mechanical know-how. The kit’s precision-fit design bolts into factory mounts, helping you avoid extensive fabrication and speeding up the upgrade process.

Warranty and peace of mind

Rough Country backs this 6-inch Radius Arm Coilover Conversion Suspension Lift Kit with a Limited Lifetime Replacement Warranty against manufacturer defects, providing long-term confidence as you tackle trails and daily driving.