This is a new in the box for your 1963-1974 A B & E  Body Chrysler brake booster and master cylinder for four wheel drum brakes. This is an 8" dual diaphragm Bendix booster and a 1" inch bore master cylinder. 

This works with a factory manual brake pedal 

Kit includes:

1- 8 inch dual diaphragm booster 4 bolt back like OEM

1- mounting bracket for booster pedal attachment has some adjustment

1 cast iron 4 bolt hole master cylinder 1" bore 

BCK-162