Bolt-in Torque arm rear suspension kit for 55-59 GM pickups and panel trucks. This is the ultimate riding and handling rear suspension for these trucks. Torque arm suspension has the traction characteristics of ladder bars with the cornering characteristics of a four link. Kit comes complete with forward mount crossmember, coil-over crossmember, housing brackets, panard rod, coil-overs, hardware and instructions. Frame brackets bolt-in, housing brackets must be welded on.