2.5 Inch Lift Kit w/ Radius Arm | FOX 2.5 Performance Elite Coilover Conversion | Ford F250/F350 Super Duty (11-16) 4WD | Diesel

Built for Super Duty diesel owners who demand 35-inch tire clearance and rock-solid steering geometry without compromise. This 2.5-inch radius arm lift kit pairs heavy-duty tubular arms with FOX 2.5 Performance Elite coilover shocks — a race-proven conversion that keeps your truck planted on pavement and predictable off-road. Factory caster correction and an adjustable track bar preserve driveline geometry across the entire lift range.

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

• FOX 2.5 Performance Elite Coilover Shocks — Bolt-on diesel-spec shocks with 2.5-inch remote reservoirs for extended cooling cycles. Ten low-speed and twelve high-speed compression adjusters give you infinite tuning between comfort and control, right from the box.
• Heavy-Duty Tubular Radius Arms — Swap the factory-stamped steel for a pair of high-strength tubular arms that mount in factory locations. Built-in caster correction keeps your geometry true across lift heights, with OE-style rubber bushings for a quiet, service-free ride.
• Adjustable Track Bar (1-3/8" Solid Steel) — Pre-assembled with bushings, this track bar recenters your front axle at any lift height and bolts straight into factory mounts. No guesswork, no binding, proper steering response every time.
• Brake Line Brackets — Factory-ready brackets protect your brakes during the conversion.

Out back

The rear uses a fabricated lift block (4-inch or 5-inch options available), longer u-bolts, and a matched set of FOX Performance shocks to keep the rear end tracking true with the front. Block height is your choice — pick 4-inch, 5-inch, or run no block depending on your final ride height target.

Important notes

• Kit supports up to 35-inch tire clearance. Verify backspacing and offset with your wheel choice to avoid suspension interference.
• Designed for 2011–2016 Ford F250 and F350 Super Duty 4WD diesel models only. Not compatible with gasoline engines or 2WD variants.
• Factory radius arms must be removed and replaced — this is not a bolt-on addition to OE components.
• Remote reservoir design on FOX coilovers requires routing through the engine bay — verify hose routing clearance on your specific truck before install.

Why customers pick this at Road Runner

• Diesel-tuned from the factory — BDS engineered these shocks and arms specifically for Super Duty weight and torque, not a generic adaptation.
• Caster correction built in — No steering wander, no pulling. Geometry stays true because the radius arms handle it.
• FOX Performance Elite locally backed — We warranty every shock. If something goes wrong, we fix it on the spot.
• Installed by Super Duty specialists — Our techs do these every week. You get it done right, the first time, in one day.
• Build your truck now, pay as you go.
• 35 inches of tire clearance — The real deal. Measure twice, lift once.

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