K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Vacuum Brake Booster: Service and Repair
Power Brake Unit
1.
Remove vacuum hose from check valve and master cylinder retaining nuts.
2.
Pull master cylinder forward so it clears mounting studs and move to one side. Support cylinder to avoid stress on hydraulic lines.
3.
Remove power unit to dash nuts.
4.
Remove brake pedal pushrod retainer and disconnect pushrod from pin.
5.
Remove power brake unit from vehicle.
6.
Reverse procedure to install.
