Master Cylinder: 55-57 & 60-63 US Big Body Cars - US w/ Booster Brand new part

Brand new part

these are decent well made zinc coated

Not for RS Series

nor do you need to return your old unit

Master Cylinder: 55-57 & 60-63 US Big Body Cars - US w/ Booster Brand new partThis brand new brake master cylinder is designed for 1960 63 GM vehicles such as the Chevy Belair and Pontiac Laurentian with drum brake front ends. It fits US Pontiac models featuring a factory power booster and a 4 bolt single line system. Specifically engineered as the primary master cylinder for drum brake setups, it mounts with a 1" bore and 4 bolt configuration, ensuring compatibility with these classic cars. CADILLAC COMMERCIAL CHASSIS 1961