4-Inch Radius Arm Lift Kit

The BDS Suspension 4-inch radius arm lift kit is engineered to enhance the stance, performance, and capability of 2011-2016 Ford F250 and F350 Super Duty gas-powered trucks. This comprehensive kit allows for clearance of up to 35-inch tires, significantly improving off-road potential and aesthetics. Heavy-duty tubular steel radius arms replace the factory components, offering caster adjustment and maximizing ground clearance while utilizing OE-style rubber bushings for quiet operation. Steering geometry is optimized with a forged drop pitman arm and a heavy-duty track bar drop bracket to maintain proper steering angles and recenter the front axle through suspension travel. The rear of the suspension system features a high-strength fabricated lift block system, paired with a u-bolt flip kit for enhanced ground clearance. Buyers have the option to choose between standard NX2 Nitro Series shocks or upgrade to FOX 2.0 Performance Series shocks, both designed with vehicle-specific valving for improved control and performance. Installation is straightforward with a 100% bolt-on design, requiring no permanent modifications. Recommended tire and wheel combinations for this kit include 35 x 12.5-inch tires mounted on 18x9 or 20x9-inch wheels with a 4.5-inch backspace. Trimming may be required depending on the specific tire and wheel setup.