4-Inch Radius Arm Suspension System with FOX 2.5 Performance Elite Coil-Overs

The BDS Suspension 4-inch radius arm lift kit is engineered to significantly upgrade your 2017-2019 Ford F350 Super Duty DRW diesel truck. This comprehensive system is designed to enhance the vehicle's stance, performance, and overall capability, providing clearance for tires up to 37 inches in diameter. At the forefront of this kit are the diesel-specific FOX 2.5 Performance Elite coil-over shocks. These shocks feature a 2.5-inch impact-extruded aluminum body, a massive 7/8-inch hard chrome-plated alloy steel shaft, and an external reservoir for increased fluid capacity and cooling. The integrated DSC (Dual Speed Compression) adjuster allows for precise tuning with 10 low-speed and 12 high-speed compression levels, offering remarkable versatility for varying terrain and driving conditions. Complementing the front coilovers are secondary FOX 2.0 Performance shocks, providing maximum performance. The kit replaces the factory stamped steel radius arms with high-strength tubular steel arms that offer caster adjustment and use OE-style rubber bushings for smooth, quiet operation. To optimize steering geometry after lifting, a forged drop pitman arm is included to minimize steering angle, paired with a heavy-duty track bar drop bracket to maintain proper steering alignment and recenter the front axle. The rear of the suspension is elevated with a high-strength fabricated lift block and longer u-bolts, ensuring a level stance. The 2.5-inch Performance Elite shocks are designed for increased off-road capabilities, while the 2.0 Performance shocks utilize an Internal Floating Piston (IFP) monotube design for consistent performance. The kit comes with a 1-year manufacturer's warranty.