GM Service Manual Online
For 1990-2009 cars only

Object Number: 1566241  Size: MF

Callout

Component Name

Preliminary Procedures

  1. 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.
  2. Replace any components if damage is found in this procedure. The sprockets must be replaced as a pair.
  3. Clean all components in cleaning solvent and air dry.

1

Transfer Case Two/Four Wheel Drive Chain

Tip
Inspect for loose link pins, binding or stiff links, debris embedded in the links, or worn teeth surfaces.

2

Transfer Case Front Output Shaft Drive Sprocket

Tip

    • Inspect for chipped teeth, excessively worn gear surfaces, and debris embedded in the root of the teeth.
    • Slight wear marks are normal.

3

Transfer Case Two/Four Wheel Drive Driven Sprocket

Tip

    • Inspect for chipped teeth, excessively worn gear surfaces, and debris embedded in the root of the teeth.
    • Slight wear marks are normal.

4

Transfer Case Four Wheel Drive Clutch Hub Assembly to Transfer Case Front Output Shaft Drive Sprocket Splines

Tip
Inspect for damage or looseness with the drive sprocket.

5

Transfer Case Four Wheel Drive Clutch Hub Assembly to Front/Rear Drive Differential Carrier Assembly Splines

Tip
Inspect for damage or looseness with the front/rear drive differential carrier assembly.

6

Transfer Case Front Output Shaft Drive Sprocket Bearing

Tip
Inspect for pitting, excessive wear, or damage. If any of these conditions are found, replace the bearing. Refer to Front Output Shaft Drive Sprocket Bearing Replacement .