4 Inch Lift Kit w/ Radius Arms | FOX 2.5 Coilover Conversion - Performance Elite | Ford F450 Super Duty (23-26) 4WD

Built for F-450 owners who demand lift without complexity — the BDS 4" Radius Arm Lift Kit pairs rugged tubular arms with FOX 2.5 coilover shocks to give your 2023–2026 Super Duty serious height, reliable geometry correction, and the durability to handle heavy workloads. Support up to 37×12.5 tires while keeping steering response tight and predictable.

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

• HD Tubular Radius Arms — Heavy-duty tubular construction replaces factory stamped steel, mount in the original location, and include caster adjustment to dial in geometry across the full 4" of lift. OE-style rubber bushings at the frame mount keep the ride smooth and maintenance-free.
• Forged Drop Pitman Arm — Minimizes steering angle and works with the heavy-duty track bar drop bracket to keep the front axle centered and steering geometry predictable through suspension travel.
• Heavy-Duty Track Bar Drop Bracket — Keeps the track bar in phase as the suspension moves, preserving steering feel and axle centering under load and articulation.

Out back

3.5" of rear lift via BDS-tuned blocks that integrate with the factory spring pack, maintaining ride quality and load-carrying capability while complementing the front 4" geometry.

Pick your shocks

• FOX 2.5 Performance Series — Race-proven 2.5-inch shocks with DSC adjusters (10 low-speed, 12 high-speed compression settings), remote reservoir for extended cooling, and anodized aluminum body. Built for on-road comfort and rough-terrain capability at a solid value.
• FOX 2.5 Performance Elite — Premium version of the Performance Series with enhanced valving, tighter damping tuning, and next-level responsiveness. Maximum on-road refinement paired with off-road durability — the choice for drivers who want the best.

Important notes

• Maximum tire size: 37×12.5. Larger tires may contact body or suspension components.
• This kit is engineered for 2023–2026 F-450 Super Duty 4WD with standard factory components. Verify your model year, transmission, and factory options before ordering.
• Caster adjustment is integrated into the radius arm design — your installation tech will dial it in for your specific build during install.

Why customers pick this at Road Runner

• Radius-arm simplicity — no over-engineered complexity, just proven durability and straightforward geometry correction.
• Locally backed BDS warranty — we install and service these every week and stand behind the work.
• FOX Performance shocks tuned for the F-450 — remote reservoir keeps things cool when you're working hard or exploring rough terrain.
• Steering geometry corrected right — drop pitman arm and track bar bracket work together to keep your truck tracking straight and responsive after the lift.
• Fast install — most kits finished the same day by techs who live and breathe BDS suspension.

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