Withdrawal procedure:
- disconnect the pusher of the vacuum booster from the pedal;
- unscrew the nuts securing the master cylinder to the amplifier, remove it from the studs and set it aside;
- disconnect the hose from the amplifier;
- unscrew the nuts securing the vacuum booster bracket to the front end shield of the body, and remove the booster assembly with the bracket.
Install the vacuum booster in reverse order.