4 Inch Radius Arm Lift Kit

The BDS Suspension 4 Inch Lift Kit with Radius Arms is engineered to enhance the stance, performance, and capability of your 2017-2019 Ford F350 Dually "DRW" Super Duty gas truck with 4WD. This comprehensive kit provides the necessary components to achieve a 4-inch lift, allowing for the fitment of up to 37-inch tires. Heavy-duty tubular radius arms replace the factory stamped steel arms, offering caster adjustment for a range of lift heights and mounting with OE-style rubber bushings for quiet operation. Steering geometry is optimized with a forged drop pitman arm to minimize steering angle and a heavy-duty track bar drop bracket to keep the front axle centered through suspension travel. In the rear, the kit utilizes a high-strength fabricated lift block and longer u-bolts to achieve a level stance. The kit is supplied with precision-tuned nitrogen-charged shocks, with options for NX2 Nitro Series or FOX Performance Series shocks (FOX 2.0 Performance Series or FOX 2.5 Performance Elite Series). The NX2 Nitro shocks feature a twin-tube design with 10-stage velocity-sensitive valving, while the FOX shocks offer advanced construction like aluminum bodies and application-specific valving for enhanced performance. Installation is designed to be a 100% bolt-on process, though it is rated as difficult with an estimated time of 8 hours. Specialized tools are recommended, including a torque wrench capable of 405 ft-lbs. Notes indicate that front exhaust modification may be required to clear the front driveshaft on gas models, and removal of the factory leaf spring block is necessary. If equipped with a 2-piece rear driveshaft, a Carrier Bearing Drop Kit (BDS123402) may be required. Minor trimming may also be needed for 37 x 12.50 tires.