EMPI’s “Wide Track” rear disc brake kit is for off roaders who are looking to increase their rear wheel “track”. Kit comes complete with 1-piece minimum offest 1in extra wide rotors, calipers, pads, mounting brackets, and all necessary hardware and gaskets for the complete installation. Rotors are threaded for 12mm and 14mm studs. 5/205, I.R.S. 1968 – 1972, swing axle 1968.