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

Transfer Case Shift Control Module


Object Number: 886493  Size: MF
(1)I/P Harness
(2)Transfer Case Shift Control Module Connectors
(3)Transfer Case Shift Control Module
(4)Instrument Panel
Figure 2:

Transfer Case Shift Control Switch


Object Number: 349756  Size: MF
(1)Transfer Case Shift Control Switch
(2)Instrument Panel Switch and Deflector Housing
Figure 3:

Transfer Case (NVG 236/246 NP8)


Object Number: 1587663  Size: MF
(1)Engine Harness
(2)C350 Transfer Case Harness to Engine Harness
(3)Transfer Case Encoder Motor
(4)Vehicle Speed Sensor (VSS)
(5)Propshaft Speed Sensor-Rear
(6)Transfer Case Harness
(7)Propshaft Speed Sensor-Front
Figure 4:

Front Drive Axle Harness Routing (K25 Series)


Object Number: 310212  Size: LF
(1)Ground 110 (G110)
(2)Vent Tube
(3)Vent Tube Connection
(4)Front Axle Actuator
(5)Front Axle Actuator Connector
(6)Left Inner Fender
Figure 5:

Front Drive Axle Harness Routing (K15 Series)


Object Number: 310214  Size: LF
(1)Vent Tube
(2)Vent Tube Connection
(3)Front Axle Actuator
(4)Front Axle Actuator Connector
(5)Front Drive Axle Assembly (Mount)
(6)Ground 110 (G110)
(7)Left Inner Fender