A 1989 VACUUM POWER BOOSTER CHART A 4 W A MV TRUCK PRODUCTION SERVICE DIV USAGE n V COL NO 18012882 18012882 CT M1 W JB3 1 I W 4 1989 M POWER BOOSTER CHART A 1 A GROUP 1 SERVICE POWERHEAD BOOSTER 4 4 901 18012882 A A AIR VALVE PLUNGER VALVE 4 918 18014492 BOOT KIT 1 4 659 18012140 PISTON KIT 4 922 18015795 PISTON ROD KIT 4 924 05469384 I POWERHEAD REPAIR KIT 4 898 18014481 VALVE GROMMET 4 955 18003614 L 1991 GENERAL MOTORS SERVICE PARTS 0PERATIONS LTTRUCK 52M 1 91 4 sa 4 901