Installation Procedure

Fig 1: View Of Pushrod Clevis And Booster Shaft

Courtesy of GENERAL MOTORS CORP.

Fig 2: Measuring Distance From Booster To Center Of Fork Pin bore

Courtesy of GENERAL MOTORS CORP.

Measure the distance from the booster to the center of the fork pin bore.
Specification: The distance from the booster to the center of the fork pin bore should be 120 mm (4.7 in).
Install the rubber boot to the booster.

NOTE: Refer to Fastener Notice .

Tighten the booster hex nut and the pushrod clevis.
Tighten: Tighten the booster hex nut and the pushrod clevis to 18 N.m (13 lb ft) .

Fig 3: View Of Booster And Mounting Nuts

Courtesy of GENERAL MOTORS CORP.

Install the booster and the mounting nuts to the dash panel.
Tighten: Tighten the booster-to-dash panel nuts to 22 N.m (16 lb ft) .

Fig 4: View Of Shaft And O-Ring

Courtesy of GENERAL MOTORS CORP.

Attach the shaft and the rubber O-ring.
Connect the master cylinder to the booster. Refer to Master Cylinder Replacement .
Connect the brake line fittings to the hydraulic modulator, if applicable.
Tighten:
- Tighten the brake line fittings to 16 N.m (12 lb ft) .
- Tighten the master cylinder attaching nuts to 24 N.m (18 lb ft) .

Fig 5: View Of Booster And Components

Courtesy of GENERAL MOTORS CORP.

Install the vacuum hose and the clip to the booster.
Install the hose clamps on the vacuum hose, and snap the vacuum hose in the revolving clip.
Ensure the vacuum hose connections are tight at each end.
Install the pushrod pin to the brake pedal bracket assembly and connect the clip and the spring.
Install the stop lamp switch. Refer to Stop Lamp Switch Replacement .