Transfer Case Rear Half Cleaning and Inspection

WARNING: This page is about a different car, the 2013 GMC Yukon XL, 2013 GMC Yukon, 2013 Chevrolet Tahoe, 2013 Chevrolet Suburban, and 2013 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Transfer Case Rear Half Cleaning And Inspection Areas

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
CAUTION: Refer to Machined Surface Damage Caution . 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 Case Half Assembly NOTE: 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 NOTE: Replace the rear case half assembly if the groove is worn.
3	Vehicle Speed Sensor Threads NOTE: Replace the rear case half assembly if the speed sensor threads are damaged.
4	Transfer Case Rear Output Shaft Rear Bearing Bore NOTE: 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 NOTE: Replace the front case half assembly if a bearing has spun or if cracks are detected.
6	Case Sealing Surface NOTE: Repair small scratches or nicks with a soft stone.
7	Transfer Case Four Wheel Drive Actuator Lever Shaft Bearing Assembly Procedure 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 NOTE: Replace the rear case half assembly if a bearing has spun or if cracks are detected.
9	Transfer Case Locating Pin Holes NOTE: Replace the rear case half assembly if the locating pin holes are out of round or damaged.
10	Transfer Case Rear Output Shaft Bushing Procedure Replace the bushing if it is damaged or worn. Refer to Transfer Case Disassemble , and Transfer Case Assemble . If the bushing is removed, inspect the bushing bore for signs of spinning. Replace the rear case half assembly if the bushing has spun.