4 Inch Lift Kit w/ Radius Arm | Ford F250/F350 Super Duty (05-07) 4WD | Diesel

Built for diesel truck owners who want 4 inches of lift without sacrificing ride quality. This BDS radius arm kit raises your 2005–2007 Ford F250 or F350 Super Duty, clears up to 35" tires, and uses tubular radius arms with caster correction to preserve OE steering geometry. Choose between a block-style or leaf-spring rear setup, then pair it with NX2 Nitro or FOX 2.0 shocks to dial in your ride.

Installed and serviced at Road Runner Wheels & Tires. Most kits go in the same day. Call (678) 400-6467 to schedule.

What you get up front

• Pro-Ride diesel coil springs — full-length, load-rated springs engineered for the weight and torque of a diesel engine, delivering consistent lift height across all terrain.
• Tubular radius arms — factory-location mounts with caster-adjustment slots, letting you fine-tune caster angle for steering feel. OE-style rubber bushings keep it quiet and maintenance-free.
• Forged drop pitman arm & track bar bracket — minimizes steering angle and re-phases the front axle to keep geometry stable through suspension travel.
• Sway bar relocation kit, brake line brackets & hardware — everything needed to clear the new ride height and keep braking safe.

Out back

Choose your rear setup: block kit (available with or without factory overload springs) for a simpler, cost-effective lift, or leaf springs for a softer, more progressive ride. Both include u-bolt flip kits for maximum ground clearance and matching rear shocks.

Pick your shocks

• BDS NX2 Nitro — comfort-tuned nitrogen charged shocks for smooth, predictable on-road and off-road performance. Great for daily drivers who want a lifted truck without the stiff ride.
• FOX 2.0 Performance Series — adjustable damping and larger bore capacity for drivers who tow heavy, climb rocks, or demand maximum control across rough terrain.

Important notes

• This kit is engineered for 2005–2007 F250/F350 Super Duty diesel trucks with factory single rear wheels (DRW setups require separate consultation).
• Factory overload springs are an option — confirm your truck's current rear suspension before ordering.
• 35" tires are the maximum safe tire size with this lift. Larger tires may rub, void warranty, or impact driveline angles.
• Diesel engines add weight compared to gas — the Pro-Ride springs and radius arm geometry are tuned specifically for that load. Gas-engine trucks use a different kit.

Why customers pick this at Road Runner

• BDS suspension is engineered and warranted by BDS — we back it locally and handle warranty service on-site.
• Our technicians install these kits every week on Super Dutys; we know exactly what the truck needs and won't cut corners.
• Caster correction built into the radius arms means steering geometry stays tight without extra adjustments.
• Professional install in our shop on most kits keeps you on the road faster.

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