2" drop Mustang II spindle, designed to use the late GM rotors and calipers, they give you the correct steering geometry and provide a 2" drop. No more pad spacers or custom spindle nuts. This new smart spindle features a farged in caliper mount and a custom designed chrompoly shaft. And comes with the Dual Pattern Rotors 4 1/2" & 4 3/4" bolt pattern, Calipers, bearings, seals, and hardware