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

Wheel Speed Sensor -- RF (2WD)


Object Number: 774478  Size: MF
(1) Rotor
(2)Wheel Speed Sensor (WSS)
Figure 2:

Wheel Speed Sensor -- RF (4WD)


Object Number: 774480  Size: MF
(1)Rotor
(2)Wheel Speed Sensor (WSS)
Figure 3:

Chassis Wiring Harness to Front Frame (25 Series 3/4 ton)


Object Number: 615810  Size: MF
(1)LF Shock Connector
(2)LF Wheel Speed Sensor Connector (Chassis Harness Side)
(3)LF Wheel Speed Sensor Connector
(4)LF Electronic Position Sensor Connector (Chassis Harness Side)
(5)LF Electronic Position Sensor Connector
(6)Chassis Harness
(7)RF Shock Connector
(8)RF Wheel Speed Sensor Connector
(9)RF Electronic Position Sensor Connector
(10)Frame
Figure 4:

Left Side Frame Rail - w/o JL4


Object Number: 599037  Size: MF
(1)Electronic Brake Control Module (EBCM)
(2)Electronic Brake Control Module (EBCM) Electrical Connector - C1
(3)Electronic Brake Control Module (EBCM) Electrical Connector - C2
(4)Frame
Figure 5:

Brake Pedal Components


Object Number: 349997  Size: MF
(1)Vacuum Booster
(2)Brake Pedal
(3)Stoplamp Switch
(4)Accelerator Pedal
(5)Stoplamp Switch Retainer
(6)Dash Panel