Chevrolet Silverado / GMC Sierra. Manual — part 2849

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 front case half in cleaning solvent and air dry.

Remove any sealant from the sealing surface.

1

Transfer Case Front Half Assembly
Tip: Inspect for cracks, broken areas, or other
damage. The component must be replaced if
damage is found.

2

Transfer Case Front Output Shaft Front Bearing
Bore
Tip: Replace the front case half assembly if a
bearing has spun or if cracks are detected.

3

Transfer Case Studs (Qty: 6)
Tip: Replace any damaged studs.

4

Transfer Case Input Shaft Bearing Bore
Tip: Replace the front 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 Thread Bolt Holes
Tip: Repair any damaged threads.

7

Transfer Case Locating Pin Holes
Tip: Replace the front half case assembly if the
locating pin holes are out of round or damaged.

8

Transfer Case Locating Pins (Qty: 2)
Tip: Repair or replace loose, missing, or damaged
locating pins.

9

Transfer Case High/Low Internal Gear
Tip: Replace the front case half assembly if the
gear is loose in the case, or if the gear teeth are
chipped or embedded with debris.

10

Transfer Case Shift Detent Lever Bearing Bore
Tip: Replace the front case half assembly if a
bearing has spun or if cracks are detected.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

TRANSFER CASE REAR HALF CLEANING AND INSPECTION

Fig. 28: View Of Transfer Case Rear Half Inspection Points
Courtesy of GENERAL MOTORS CORP.

11

Transfer Case Shift Detent Lever Bearing
Assembly
Tip: Replace the bearings if roughness, brinelling,
or pitting is detected. Refer to Shift Detent
Lever Bearing Replacement.

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 the rear case half in cleaning solvent and air dry.

NOTE:

Refer to Machined Surface Damage Notice .

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 1222/1225/1226-NQG - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado