For the ultimate upgrade to your Ford F250 or F350 Super Duty, Fabtech offers their Coilover Shock conversion system. The factory coil spring bucket is retained for an easy installation of the replacement Dirt Logic 4.0 Coilovers with external Reservoir. Experience amazing performance with this Fabtech upgrade. This Coilover system is compatible with both the Fabtech Radius Arm and 4 Link systems.Kit Components Dirt Logic 4.0 resi front coiloversUpper and lower mountsHardwareKit FeaturesOutstanding ride qualityIncreased ground clearanceStainless steel body for maximum corrosion resistance Super stout bracketry that retains the coil spring bucket for fast install