4 Inch Lift Kit w/ Radius Arm | Ford F250/F350 Super Duty (11-16) 4WD | Diesel

Built for diesel F250/F350 owners who want 35" tire clearance without compromising ride quality or steering geometry. This 4-inch radius arm lift kit from BDS Suspension delivers the stance and capability you need while preserving factory driveline angles. You get heavy-duty tubular radius arms with caster correction, diesel-specific Pro-Ride coil springs, a forged drop pitman arm and track bar bracket for steering correction, plus your choice of NX2 Nitro or FOX 2.0 Performance shocks front and rear.

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 tuned for the weight and torque of your Super Duty. They deliver predictable ride quality across pavement and terrain without the harshness of aftermarket alternatives.
• Tubular Radius Arms — Factory-location mounts with caster correction built in. Heavy-duty construction replaces the stamped-steel OE arms and keeps your steering geometry in phase as you climb through suspension travel.
• Forged Drop Pitman Arm & Track Bar Bracket — Minimizes steering angle and re-centers your front axle. These components work together to keep your truck tracking straight once lifted.
• Sway Bar Relocation & Brake Line Brackets — Everything needed to maintain factory geometry and safety when the frame rides higher.

Out back

A high-strength fabricated lift block stacked under the leaf springs gives you a full 4 inches of rear height. The u-bolt flip kit maximizes ground clearance, and BDS includes brake line brackets and a matching set of shocks to complete the package.

Pick your shocks

• BDS NX2 Nitro Series — Nitrogen-charged comfort for daily driving and weekend work. Smooth, predictable, and built to last. Pairs with either the 5-inch block kit or leaf spring option.
• FOX 2.0 Performance Series — Premium ride and handling for rough terrain. Externally adjustable damping and a larger bore keep your truck planted and controlled at any speed. Available with both rear configurations.

Important notes

• Maximum tire size: 35 x 12.5. Larger tires may rub at full articulation or when turning.
• Fits 2011–2016 Ford F250 and F350 Super Duty 4WD models with diesel engines (6.7L Power Stroke).
• Rear lift options: 5-inch block kit (with u-bolt flip) or leaf spring kit. Both mount at the factory location.
• BDS supplies nitrogen-charged shocks as your choice of tier — NX2 Nitro or FOX 2.0 Performance. Do not mix shock types front to rear.
• No factory air suspension, electronic ride-height control, or integrated hydraulics to manage. This kit is mechanical and proven.

Why customers pick this at Road Runner

• Corrected geometry from the factory. The radius arms, drop pitman arm, and track bar bracket keep your steering and driveline aligned — no guessing, no chasing vibration.
• BDS warranty backed locally. We're an authorized BDS dealer. If something goes wrong, we handle it face-to-face, not through a call center.
• Professional install in our shop by techs who do these every week. Your truck is in and out while you wait, with technicians who know every step cold.
• 35" tire clearance and a smooth ride. You don't sacrifice comfort for height or height for steering feel.
• Diesel-specific engineering. These springs and arms are tuned for the weight and torque of your Power Stroke, not generic truck springs.

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