OIL SEAL, DIFFERENTIAL OUTPUT SHAFT, SET OF TWO. FITS 1974-1987 XJ6 AND 1976-1993 XJS UP TO VIN 189099 WITH INBOARD REAR BRAKES. If your output shaft seals are leaking you would be better off getting the DIF300 bearing and seal kit. With 7 hole flange. AAU8271 (JLM1264)