You can install a new power vacuum
Brake Booster gasket, the power vacuum brake booster, and the power vacuum brake booster nuts, connect the brake booster pushrod to the brake pedal pin, install the stop lamp switch, connect the stop lamp switch electrical connector, install the brake booster pushrod retainer, the brake booster pushrod retainer bolt, the O-ring seal on the master cylinder body, position the master cylinder to the power vacuum brake booster, install the brake master cylinder nuts, the power brake booster vacuum sensor and vacuum hose, connect the power brake booster vacuum sensor electrical connector.