Vacuum Brake Booster: Service and Repair

1. Remove master cylinder as described under Master Cylinder, Replace, Power Brakes.
2. From inside passenger compartment, disconnect stop lamp switch electrical connector.
3. Remove pushrod retainer and outer nylon washer from pedal pin, then slide switch along brake pedal far enough for outer hole to clear pin. Slide switch upward and remove.
4. Remove booster to dash panel attaching nuts, then slide booster pushrod and pushrod bushing from brake pedal pin.
5. From inside engine compartment, disconnect manifold vacuum hose from booster check valve.
6. Move booster forward until booster studs clear dash panel, then remove booster.
7. Reverse procedure to install.