This billet aluminum hub is a direct replacement for 1978 to 1985 Impala spindles. Features an integral rotor mount that fits 1.00” x 11-3/4” stock dimension rotor, fits stock caliper and mount. Uses stock bearings, races, seal and dust cap. Specify 5 x 5” or 5 x 4-3/4” wheel patterns and 5/8” coarse or fine studs. Available with 1” wider track width. Bearings, races, dust cap, axle nuts, washers, rotors and or rotor plates all sold separately.