High/Low Shift Fork Replacement

WARNING: This page is about a different car, the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: High/Low Shift Fork Replacement

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Transfer Case High/Low Shift Fork Pin Tip: Drive the pin out using a drift punch and hammer.
2	Transfer Case High/Low Shift Fork Tip: Inspect for wear or damage in the spring seat locations. The component must be replaced if damage is found.
3	Transfer Case High/Low Shift Fork Spring Assembly Tip: The component must be replaced if the following conditions exist: The cam lobes are worn or rough The spring is broken
4	Transfer Case Two/Four Wheel Drive Actuator Cam Retaining Ring
5	Transfer Case Two/Four Wheel Drive Actuator Cam Spacer
6	Transfer Case Two/Four Wheel Drive Actuator Cam
7	Transfer Case High/Low Shift Fork - Service - Pin Tip: Apply a small amount of threadlock GM P/N 12345493 (Canadian P/N 10953488), or equivalent, to the shaft of the pin before installation. Press the pin into the control actuator shaft using a brass drift until bottom.
8	Transfer Case Shift Fork Shaft Guide Screw NOTE: Refer to Fastener Notice . Tip: Apply threadlock GM P/N 12345493 (Canadian P/N 10953488), or equivalent, to the screw threads. Tighten: 5 N.m (44 lb in).