High/Low Shift Fork Replacement

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. 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 a 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
6	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 it bottoms.
7	Transfer Case Shift Fork Shaft Guide Screw Tip: Apply threadlock GM P/N 12345493 (Canadian P/N 10953488) or equivalent to the screw threads. Tighten: 5 N.m (44 lb in)