5 A I cms as Em O A 0 I ER 1 A 1 Lx V fl V Ii V Q ln H Inotincl in 2 I r A A A y A A I IEEIO 1 4 Z I L IZ Cf A L GM9 83 1982 1983 A A C 81 HEATER CONTROL ASM A C CONTROL ASSEMBLY SEMI A AUOTMATIC 1 9 273 CONTROL HTR A C 2 9 279 PLATE BASE 3 9 279 DIAL KIT CONTROL 4 9 278 KNOB LVR BLO SW A 5 9 278 KNOB LVR TEMP SELECT 6 9 275 SWITCH BLOWER 7 9 275 SWITCH SELECT ROTARY 1 8 9 280 VALVE VAC SELECT 5 PORT I 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS CHEVROLET 17A 1 5 91 I 9 49 9 000 GROUP