Master Cylinder 1967-68 Pontiac & DEEP Booster Pin Type - 1" - Drum/Drum 66-68 era * READ

This is important if you have a BUICK, Caddy or PONTIAC Full size USA made car with factory  DRUM Front DRUM Rear car of the following with power booster.. the PIN coming out of the power booster.. going INTO the master cylinder is about 1 5 inches or  35 mm roughly . The Alternative size is about 12mm.  For DRUM Front and Drum rear ONLY.

IF you have the same models but short pin.. its an alternative booster used on the same era and has a SHORT Dipple in the back of the masters piston.. then look at # PW2607K

Fitted to the following cars but NOT .. NOT.. Chevy.