6" RAD ARM SYS W/ 4.0 R/R & 2.25 2011-16 FORD F250 4WD.

Fabtech continues its legendary Coilover Conversion systems with an all new design for the 2011-16 Super Duty. This new system utilizes the factory coil spring bucket for a fast, easy installation with an affordable price. The heavy duty bracketry allows the installation of the massive Dirt Logic 4.0 Remote Resi Coilover shocks. Dirt Logic Coilovers are constructed with a Stainless Steel body and NitroSteel piston rod for maximum corrosion resistance. The Dirt Logic 4.0 for 6in lift systems feature dual rate coil springs for a superior quality both on and offroad.