6 Inch Lift Kit | Diesel | 4 Link | C/o Vertex | Ford F-250/f-350 Super Duty (05-07)

Built for first-generation Super Duty diesel owners who want a 6-inch lift with coilover adjustability and superior ride quality, this 4-Link Coilover Conversion Kit replaces your factory independent coil setup with a fully adjustable Vertex system. You'll gain up to 37" of tire clearance while maintaining factory handling through radius arm drop brackets engineered for proper caster geometry.

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-inch upper arm kit — fixed arms engineered to work with the lower control arms for a rigid 4-link geometry.
• 6-inch lower control arms — fully adjustable to fine-tune ride height and caster angle after installation.
• Vertex 2.5 coilovers (front pair, adjustable 4.5"–6") — 2.5-inch monotube shocks with nitrogen charge, external reservoir, and 8-stage damping adjustment; 56% greater fluid capacity than OEM reservoir shocks.
• Vertex 2.5 rear coilovers (pair, 6-inch fixed) — matched monotube design for consistent damping and ride control.
• Radius arm drop brackets — maintain proper driveline geometry and allow for critical caster correction to preserve factory handling and steering feel.
• 3-inch rear block and U-bolt kit — supports rear lift height and ride geometry.
• Add-A-Leaf pack — reinforces rear spring capacity under the new suspension load.
• Installation hardware and brackets — all fasteners and mounts required for a complete install.

Important notes

• Does not fit dually models.
• Requires exhaust modification to clear the front driveshaft.
• Installation involves cutting and drilling — professional install is strongly recommended, though home builders with welding capability can complete it in 6–10 hours.

Why customers pick this at Road Runner

• Coilover ride height adjustability — fine-tune your stance and damping on the fly without replacing shocks.
• Caster correction built in — radius arm drop brackets preserve factory handling geometry, so your truck steers and stops like it should.
• Backed by Rough Country's lifetime warranty — we service every kit we install and stand behind Rough Country's industry-leading coverage.
• Professional installation in-house — our technicians perform these conversions every week and include wheel alignment as part of the lift service.
• Same-day installation on most kits — get on the road fast.

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