Perno
Jaguar: XJ6 Series I (1968-72) and Series II to November 1973 - 2.8 to 2U50001, 4.2 SWB models to 2M1658, 2M50015, 2N3479 and 2N51654 and Series II LWB models to 2S1088, 2S50001, 2T1525 and 2T50001 - identification: 3 pot caliper and imperial threads • XJ12 Series I (1972-73) and Series II to November 1973 - Jaguar to 2R50210 and 2R1477, Daimler to 2K50005 and 2K1078, Vanden Plas to 2P50001 and 2P1151 - identification: 3 pot caliper and imperial threads
front brake caliper to hub carrier - thread: 7/16" UNF, length: 1.3/8"
Counterpart
