GM09 090 19 9 172 SWITCH FAN KIT INCLS 18 20 20 9 172 RETAINER SW RR CMPR HD 21 9 178 VALVE PRESS REL 22 8 927 0 RING RELIEF VALVE 1 23 9 188 KEY CLUTCH HUB 24 9 170 O RING CYL D SCHARGE 1 25 9 170 SEAL KIT SHAFT BEGINNING W 1984 2ND DE1S 2 NOTE 1 GROUP 9 175 RING SEAL KIT 2724281 INCLUDES 9 14 18 22 24 NOTE 22 1ST DES 6599114 USED IN ALL MODELS PRIOR TO 1984 IB 1984 ASM NUMBERS 1131400 1131407 1131409 1 131413 2ND DES 2724319 USED IN ALL OTHEER 1984 ASSEMBLIES LATER 1991 GENERAL MOTORS SERVICE PARTS OPERATI NS OLDSMOBILE 32W 6 9 1 9 27 9 000 GROUP 1 1