GM Service Manual Online
For 1990-2009 cars only

Object Number: 1849358  Size: MF

Callout

Component Name

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 all components in cleaning solvent and air dry, except the clutch plates.

1

Transfer Case Control Actuator Thrust Bearing

Tip
Replace the bearing if roughness, brinelling, or pitting is detected.

2

Transfer Case Control Actuator Lever Thrust Bearing Surface

Tip
Inspect for pitting, excessive wear, or damage.

3

Transfer Case Control Actuator Lever Bearing Surface

Tip
Inspect for pitting, excessive wear, or damage.

4

Transfer Case Control Lever Arm

Tip
Inspect for excessive wear or damage.

5

Transfer Case Control Actuator Lever Ball Ramps

Tip
Inspect for pitting, excessive wear, or damage.

6

Transfer Case Control Actuator Lever Bearing

Tip
Replace the bearing if roughness, brinelling, or pitting is detected.

7

Transfer Case Control Actuator Lever Balls

Tip
Replace the bearings if roughness or pitting is detected.

8

Transfer Case Control Actuator Lever Ball Ramps

Tip
Inspect for pitting, excessive wear, or damage.

9

Transfer Case Control Actuator Lever Bearing

Tip
Replace the control actuator lever assembly if roughness, brinelling, or pitting is detected.

10

Transfer Case Control Actuator Lever Bearing Surface

Tip
Inspect for pitting, excessive wear, or damage.

11

Transfer Case Control Actuator Thrust Bearing

Tip
Replace the bearing if roughness, brinelling, or pitting is detected.

12

Transfer Case Control Actuator Lever Washer

Tip
Inspect for pitting, excessive wear, or damage.

13

Transfer Case Four Wheel Drive Clutch Pressure (Apply) Plate Washer Surface

Tip
Inspect for pitting, excessive wear, or damage.

14

Transfer Case Four Wheel Drive Clutch Pressure (Apply) Plate Surface

Tip
Inspect for excessive wear, cracks, or damage.

15

Transfer Case Four Wheel Drive Clutch Pressure Plate Springs

Tip
Inspect the springs for cracks.

16

Transfer Case Four Wheel Drive Clutch Pressure (Friction) Plates

Tip
Inspect for worn, grooved, burnt, or flaking friction material, or warped friction plates.

17

Transfer Case Four Wheel Drive Clutch Pressure (Steel) Plates

Tip
Inspect for worn or warped steel plates.

18

Transfer Case Four Wheel Drive Clutch Hub Bearing Surface

Tip
Inspect for pitting, excessive wear, or damage.

19

Transfer Case Four Wheel Drive Clutch Hub Teeth

Tip
Inspect for excessive wear or damage. Excessive wear can be identified by steps in the teeth.

20

Transfer Case Four Wheel Drive Clutch Hub Friction Plate Surface

Tip
Inspect for excessive wear, cracks, or damage.

21

Transfer Case Front Output Shaft Drive Sprocket Engagement Teeth

Tip
Inspect the engagement teeth for excessive looseness on the front output shaft drive sprocket.

22

Transfer Case Four Wheel Drive Clutch Housing Teeth

Tip
Inspect for excessive wear or damage. Excessive wear can be identified by steps in the teeth.

23

Transfer Case Four Wheel Drive Clutch Hub Splines

Tip
Inspect the splines for excessive looseness on the rear output shaft.

24

Transfer Case Two/Four Wheel Drive Actuator Cam

Tip
Inspect the cam lobes for wear or roughness. Refer to High/Low Shift Fork Replacement if damage is found.

25

Transfer Case Two/Four Wheel Drive Actuator Cam Spacer

Tip
Inspect the spacer for wear or roughness. Refer to High/Low Shift Fork Replacement if damage is found.