4" 2020-2022 Ford F450 Super Duty 4WD Radius Arm Lift Kit by BDS Suspension

BDS1224H, BDS1224FS, and BDS1224FPE 4" Radius Arm Lift Kits improve suspension strength, stability, and ride quality on Ford F-450 Super Duty trucks. Designed for drivers who want dependable performance without unnecessary complexity, this system replaces the factory-stamped-steel radius arms with heavy-duty tubular radius arms that deliver improved durability, a consistent steering feel, and reliable performance under heavy towing, hauling, or off-road use.

The heavy-duty BDS radius arms mount directly in the factory location and feature caster adjustment to properly align the front axle across a wide range of lift heights. Built from high-strength DOM steel, the arms restore proper suspension geometry while maintaining predictable handling and reducing tire wear or steering wander. OE-style rubber bushings at the frame mounts isolate noise and vibration while providing smooth, maintenance-free operation for long-term reliability. Full-length BDS Pro-Ride coil springs provide the correct 4" lift height while maintaining smooth ride quality and predictable suspension performance across a variety of driving conditions. To maintain proper steering geometry, the system includes a forged drop pitman arm and heavy-duty track bar relocation bracket that keep the steering and track bar operating in phase while recentering the front axle after lifting the truck.

BDS1224H includes BDS NX2 Nitro Series shocks designed for dependable everyday driving and long-term durability. BDS1224FS includes FOX 2.0 Performance Series Shocks to improve wheel travel, damping control, and off-road capability. BDS1224PES includes FOX 2.5 Performance Elite shocks with external reservoirs and DSC (Dual Speed Compression) adjusters, allowing independent tuning of high- and low-speed compression for maximum suspension control on any terrain.

Features and Benefits:

• BDS1224H, BDS1224FS, and BDS1224FPE 4" radius arm lift kit for Ford F-450 Super Duty
• Heavy-duty tubular radius arms provide increased strength over factory arms
• DOM steel radius arms restore proper caster angle and suspension geometry
• OE-style rubber bushings isolate noise and vibration for quiet operation
• BDS Pro-Ride coil springs provide correct lift height and predictable ride quality
• Forged drop pitman arm corrects steering geometry
• Track bar relocation bracket recenters the front axle after lifting
• Improves steering stability and reduces suspension bind
• BDS1224H includes BDS NX2 Nitro Series shocks
• BDS1224FS includes FOX 2.0 Performance Series shocks
• BDS1224FPE includes FOX 2.5 Performance Elite shocks with DSC adjusters
• Supports up to 37" tires with appropriate wheel specifications
• Recommended tire size: 37 x 12.5
• Recommended wheel size: 18 x 9 or 20 x 10