GMC 1990 Light Truck Repair Manual page 39

A-6 AIR CONDITIONING COMPRESSOR 1B1-19
30. Sleeve
31. Seal
F1629
Figure 45— Installing the Front Discharge Valve
Figure 43— Installing the Discharge Crossover
Tube Plate
21352
16.
18. Discharge Plate
39. Shaft
F1470
Figure 46— Installing the Front Head
Figure 44— Installing the Front Suction Reed Plate