1967-69 GM F-body Camaro / Firebird, 1968-74 X-body Nova, 1967-72 GM-A body Chevelle, GTO, 442, GS, 1966-70 Impala, 88, 98, Catalina, Bonneville, Grand Prix, Electra, Wildcat, Stock Single Master Cylinder. 1967-70 Chevy /GMC Truck. Standard 1" bore for manual or power Front Drum brakes. Shallow hole, Also for 64-67 Dual Master Cylinder Conversion. This is for all 1967-72 with drum brakes or 64-72 converting to dual master cylinder from the single master cylinder. This is the master cylinder used on all dual system conversions - it breaks the front and the rear up and separates the one system into two. It fits right in place of the old master and bolts right up. It has the hard to find correct 1" bore for drum brake cars - the later 1 1/8" master will not work the pedal will be too hard to.
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