This hub fits 1978-1985 Impala spindles with 1” x 11-3/4” brake rotors. Made from billet steel. Features an integral rotor mount. Uses stock bearings, races, seal, axle nut, washer and dust cap. Hub available with 5 x 5” or 5 x 4-3/4” bolt patterns with 5/8” coarse or 5/8” fine studs. Hub includes studs only (No races). Custom stud pattern available at extra charge. All parts sold separately. "WARNING:This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm."