Brake Booster Replacement
Move the brake booster (A) to downward with turning, then remove the brake booster from the vehicle.
Install the brake booster in the reverse order of removal, and note these items:
Always use a new lock pin.
Install the master cylinder after installing the brake booster.
Check the brake pedal height and free play after installing the master cylinder, and adjust it if necessary.
Bleed the brake system.