S15/T15 4WD P/U L4-121 2.0L VIN Y 2-bbl (1983)
Vacuum Brake Booster: Description and Operation
Delco Moraine Brake Boosters
Description
Fig. 1 Delco Moraine single diaphragm power brake unitexploded view
Fig. 2 Delco Moraine single diaphragm power piston assembly exploded view