Supposed to fit the following:  

Chevrolet 1960-1961 Pass with 3-speed – 1st and reverse

Chevrolet 1962-1963 Passenger with 3-speed and 409-1st and reverse (see GM parts book listing picture)

Chevrolet Pickup 1961-1967 Series 10-30 with 3-speed except D-D-1st and reverse

Chevrolet Pickup 1961-1967 Series 10 D-D with 3-speed-1st and reverse

Chevrolet Pickup 1968-1970 Series 10-20 with 3-speed-1st and reverse

Chevrolet Pickup 1971-1972 All, Blazer-1st and reverse

Chevrolet Pickup 1973-1978 GP1, 2, 3-1st and reverse

possibly more, assuming GMC trucks also

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