This is a good used differential rear aluminum housing/cover. This fits the Triumph TR250, and TR6  differentials, 1967 to 1976. Moss number 675-005 - not available. This is the late type with the "crown" mounting design. I do not know if this will fit the earlier "mickey mouse" design as on TR4A IRS.. This rear cover is in excellent condition, with good mount arms - which are prone to breaking - gasket mating surface and breather assembly. Buyer pays shipping of $25.00 in the USA. Please check out our other auctions. Thanks for looking and good luck!