GM Service Manual Online
For 1990-2009 cars only

Object Number: 1843585  Size: MF

Callout

Component Name

Caution: Refer to Machined Surface Damage Caution in the Preface section.

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 Rear Bearing Bore

Tip
Replace the rear case half assembly if a bearing has spun or if cracks are detected.

5

Case Sealing Surface

Tip
Repair small scratches or nicks with a soft stone.

6

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.

7

Transfer Case Front Output Shaft Rear Bearing Assembly

Tip
Replace the bearing if roughness, brinelling, or pitting is detected. Refer to Front Output Shaft Rear Bearing Replacement.

8

Transfer Case Locating Pin Holes

Tip
Replace the rear case half assembly if the locating pin holes are out of round or damaged.

9

Transfer Case Rear Output Shaft Bushing

Tip

    • Replace the bushing if it is damaged or worn.
       - For light duty (LD) vehicles, refer to Transfer Case Disassemble and Transfer Case Assemble.
       - For heavy duty (HD) and super heavy duty (SHD) vehicles, 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.