Transfer Case: Description and Operation

Four-Wheel Drive Systems
The mechanical-shift four-wheel drive system consists of the following components:
^ transfer case
^ transfer case shift lever
^ Manual locking hubs
^ 4x4 indicators
^ Shift linkage (hub locks)

The electronic-shift, four-wheel drive system consists of the following components:
^ transfer case
^ Four-Wheel Drive (4WD) control module
^ Mode Select Switch (MSS)
^ Gearmotor encoder assembly
^ Automatic locking hubs (hub locks)
^ Pulse Vacuum Hub (PVH) solenoid and vacuum lines

Part 1:

Part 2:

Part 3:

Electric Shift Transfer Case

Part 1:

Part 2:

Part 3:

Part 4:

Mechanical Shift Transfer Case