You need to install the vacuum booster assembly and the gasket, install the vacuum booster mounting nuts on the vacuum booster, install the steering column support bracket, install the stop lamp switch and the pushrod to the brake pedal pin, then install the pushrod retainer to the brake pedal pin, the left closeout/insulator panel, the check valve to the vacuum booster, and the master cylinder.
By BobGM Specialist
01/11/2022