6 Inch Lift Kit | Diesel | Vertex | Ford F-250/f-350 Super Duty 4wd (08-10)

Built for diesel Super Duty owners who want a commanding stance with genuine off-road capability. This 6-inch lift kit combines coil springs tuned to diesel weight and nitrogen-charged shocks to deliver a balanced ride both on and off-road. You'll gain the clearance for 35"–37" tires while maintaining factory caster angles and driveability — no compromises on 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

• Vertex 2.5 Front Coil Springs (qty 2) — Premium coil springs engineered to match OE rates for diesel engines, delivering a smooth, controlled ride.
• Vertex 2.5 Rear Coil Springs (qty 2) — Matched rear springs level the truck and maintain suspension balance under load.
• N3 Series Shock Absorbers — Valved for balanced on- and off-road performance with consistent damping across the suspension travel.
• 6-inch D-Coil — Raises the rear suspension with progressive spring rates for payload capacity and ground clearance.
• Add-A-Leaf — Strengthens the rear leaf pack to handle the additional load from lifted geometry and larger tires.
• 3 Inch Block And U-Bolt Kit — Mounts the rear axle and maintains proper pinion angle after the lift.
• Radius Arm Drop Brackets — Preserve factory caster angles and maintain OE handling characteristics critical to steering response and tire wear.
• Track Bar Relocation Bracket — Keeps the axle centered beneath the frame, correcting geometry and matching new steering angles.
• Drop Pitman Arm & Steering Stabilizer Relocation Bracket — Maintain proper steering control; a Rough Country single stabilizer is recommended for up to 37-inch tires.

Important notes

• This kit is engineered for diesel engines only — does not fit gas models.
• Does not fit dually configurations.
• If your vehicle is equipped with rear overload leafs, they must be removed before installation.
• A Rough Country single steering stabilizer is recommended when running 35"–37" tires; a dual stabilizer is required for 37-inch applications.

Why customers pick this at Road Runner

• Radius arm drop brackets and track bar relocation preserve factory caster angles — no steering wander or premature tire wear after lift.
• Nitrogen-charged Vertex shocks and diesel-rated coil springs deliver comfort and control on both pavement and trail.
• Installed and aligned in-house by technicians who perform these lifts every week — geometry dialed in to factory spec.
• Rough Country lifetime warranty backed locally — if anything fails, we make it right.

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