Drum Brake Master Cylinder With OEM MC1921H For Buick Skylark

The universal GM brake master cylinder is cast iron made. It is one inch bore diameter type. There are two ports on the left side, which is 9-16″ & 1/2″. It fist for Disc/Durm or Drum/Drum brake systems. And it is suitable for Buick Skylark, Special; Chevrolet Camaro, Chevelle, El Camino, Malibu, Monte Carlo; Oldsmobile 442, Cutlass, F85, Vista Cruiser; Pontiac GTO, Lemans, Tempest; etc… For the application details are as above:
1964-1972 Buick Skylark
1964-1969 Buick Special
1967-1969 Chevrolet Camaro
1964-1972 Chevrolet Chevelle
1964-1972 Chevrolet El Camino
1964-1967 Chevrolet Malibu
1970-1972 Chevrolet Monte Carlo
1964-1971 Oldsmobile 442
1964-1972 Oldsmobile Cutlass
1964-1972 Oldsmobile F85
1964-1972 Oldsmobile Vista Cruiser
1967-1969 Pontiac Firebird
1964-1972 Pontiac GTO
1964-1972 Pontiac Lemans
1964 -1970 Pontiac Tempest