This is the Disc / Drum prop valve that came on all 1971-1977 GM factory disc brake cars. This is an exact Inline Tube Reproduction. If you are putting disc brakes on a 1964-1972 A/F/X-body or just doing maintenance this item is a must for a correct disc brake car. Applications: 1964-77 Chevelle / Elcamino / Camaro / Nova 1964-77 Buick - Skylark GS 1964-77 Oldsmobile - Cutlass / 442 1964-77 Pontiac - GTO / Lemans / Tempest / Firebird.
