HERE IS A  BRAND NEW MASTER CYLINDER  FOR YOUR PONTIAC WITH "DRUM BRAKES"

 THIS 1 INCH BORE MASTER CYLINDER FITS : 

***** PONTIAC CATALINA  1962   WITH 2 BOLT MOUNTING   WITH POWER BRAKES 

***** PONTIAC CATALINA    1963 1964 1965   U.S.A. MODELS   WITH POWER BRAKES

***** PONTIAC BONNEVILLE 1962    WITH 2 BOLT MOUNTING   WITH  POWER BRAKES

***** PONTIAC BONNEVILLE  1963 1964 1965   U.S.A. MODELS   WITH POWER BRAKES

I ALSO SELL BRAKE HOSES AND WHEEL CYLINDERS