The later for DKY, D2A, D3A, DV, DX, DZ types with a cut out at the spring end, equivalent to Lucas 407050 / DSB122.

AC Ace (AC and Bristol engine cars) 1955 to 1963 AC Greyhound 1961 to 1963 Aston Martin DB2, DB2/4, DB MkIII 1951 to 1959 Austin A40 1948 to 1951 Jaguar MkV 3.5 1948 to 1952 Jaguar MkVII 1952 to 1958 Jaguar XK120, XK140 Jowett Javelin and Jupiter 1948 to 1952 Land Rover 1948 to 1953 MG TB MG TC MG TD MG TF MG YA MG YT MG YB Morgan 3-Wheeler 1948 to 1952 Morgan +4 1948 to 1954 Morgan 4-4 Series II 1956 to 1960 Riley 1 1/2 Litre 1949 to 1955 Riley 2 1/2 Litre 1947 to 1951 Singer SM1500 1949 to 1953 Triumph 1800 1946 to 19489 Triumph 2000 Saloon 1949 Triumph Mayflower 1950 to 1952 Triumph Renown 1950 to 1952