Transfer Case Rear Half Cleaning and Inspection

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: Transfer Case Rear Half Cleaning and Inspection

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
NOTE: Refer to Machined Surface Damage Notice . Preliminary Procedure Inspect all components or sub-components and perform any repair procedure necessary to fix the damage. If the damage cannot be repaired, replace the component or sub-component as indicated. Clean the rear case half in cleaning solvent and air dry. Remove any sealant from the sealing surface.
1	Transfer Case Rear Half Assembly Tip: Inspect for cracks, broken areas, or other damage. The component must be replaced if damage is found.
2	Transfer Case Rear Output Shaft Rear Bearing Outer Retaining Ring Groove Tip: Replace the rear case half assembly if the groove is worn.
3	Vehicle Speed Sensor Threads Tip: Replace the rear case half assembly if the speed sensor threads are damaged.
4	Transfer Case Rear Output Shaft Bearing Bore Tip: Replace the rear case half assembly if a bearing has spun or if cracks are detected.
5	Transfer Case Four Wheel Drive Actuator Lever Shaft Bearing Bore Tip: Replace the rear case half assembly if a bearing has spun or if cracks are detected.
6	Case Sealing Surface Tip: Repair small scratches or nicks with a soft stone.
7	Transfer Case Four Wheel Drive Actuator Lever Shaft Bearing Assembly Tip: Replace the bearing if roughness, brinelling, or pitting is detected. Refer to Transfer Case Four Wheel Drive Actuator Lever Shaft Bearing Replacement - Rear .
8	Transfer Case Front Output Shaft Rear Bearing Bore Tip: Replace the rear case half assembly if a bearing has spun or if cracks are detected.
9	Transfer Case Locating Pin Holes Tip: Replace the rear case half assembly if the locating pin holes are out of round or damaged.
10	Transfer Case Rear Output Shaft Bushing Tip: Replace the bushing if it is damaged or worn. Refer to Rear Output Shaft Bushing Replacement . If the bushing is removed, inspect the bushing bore for signs of spinning. Replace the rear case half assembly if the bushing has spun.