Make your truck disc brake compatible with a set of CPP disc brake spindles. These are the same spindles sold in CPP OEM kits and upgrade kits. Cast from the highest quality Ductile Iron with 4140 Chrom-moly CNC machined pins. Accepts factory ball joints and tie rod ends. Designed to use 1971-87 1-1/4” rotors, calipers and bearings.