Fabtech 05-20 Ford F250/350 & 08-20 Ford F450/550 4WD 4/6/8in Lift Radius Arm SystemOur patented Radius Arms feature a full tubular structure strengthened by dimple die side plates, with an adjustable alignment cam at the axle to allow caster adjustment. Front spring lift options includes 6 replacement Coil Springs. Completing this system is a Trac Bar relocation bracket, Pitman Arm, Sway Bar drops, and a rear Block & U bolt kit. This Part Fits: Year Make Model Submodel 2009 2010 Ford F 250 Super Duty Cabela's 2008 2009 Ford F 250