GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Rear Frame and Underbody


Object Number: 1380393  Size: MF
(1)Air Suspension Sensor - Left Rear
(2)Air Suspension Sensor - Right Rear
(3)Air Suspension Compressor Assembly
(4)Air Suspension Inflator Switch
(5)Frame
Figure 2:

Front Hubs and Rotors


Object Number: 826162  Size: MF
(1)Left Hand Steering Knuckle
(2)Wheel Speed Sensor - Left Front
(3)Wheel Speed Sensor - Right Front
(4)Right Hand Steering Knuckle