Chevrolet Silverado / GMC Sierra. Manual — part 2845

Fig. 17: View Of Transfer Case Adapter, Seal & Bolt
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Preliminary Procedures

1. Remove the transfer case. Refer to Transfer Case Assembly Replacement.

2. Remove the transmission mount. Refer to Transmission Mount Replacement

(2WD) or Transmission Mount Replacement (4WD) for the 4L60-E/4L65-
E/4L70-E automatic transmission, or Transmission Mount Replacement (2WD) or
Transmission Mount Replacement (4WD) for the 6L50/6L80/6L90 automatic
transmission, or Transmission Mount Replacement for the Allison automatic
transmission.

1

Transfer Case Adapter Bolt

Tighten: 50 N.m (37 lb ft)

NOTE:

Refer to Fastener Notice .

2

Transfer Case Adapter

Transfer Case Adapter Seal

2008 Chevrolet Silverado 1500

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

Sierra & Silverado

INPUT SHAFT SEAL REPLACEMENT

Fig. 18: View Of Transfer Case, Input Shaft Seal & Nuts
Courtesy of GENERAL MOTORS CORP.

3

Tip: Always use a new seal for the adapter. Do not use any type of sealant or
adhesive in place of or with the seal.

Callout

Component Name

Preliminary Procedures:
Remove the transfer case. Refer to Transfer Case Assembly Replacement.

1

Transfer Case Nuts
Tip: Use transfer case nuts to secure transfer case to assembly fixture J 45759 .
Special Tools:
J 45759 Assembly Fixture

2

Transfer Case
Tip: Insert the transfer case and assembly fixture into the bench holding fixture
J 3289-20 and secure with pivot pin.
Special Tools:
J 3289-20 Holding Fixture

2008 Chevrolet Silverado 1500

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

Sierra & Silverado

REPAIR INSTRUCTIONS - OFF VEHICLE

TRANSFER CASE DISASSEMBLE

Transfer Case Holding Fixture Installation

3

Transfer Case Input Shaft Seal

Procedure

1. Remove the seal using a flat-bladed tool.

2. Install the seal using J 42738 .

Special Tools:
J 42738 Seal Installer

2008 Chevrolet Silverado 1500

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

Sierra & Silverado

Fig. 19: View Of Pivot Pin, Transfer Case & Nuts
Courtesy of GENERAL MOTORS CORP.

Transfer Case Holding Fixture Installation

Callout

Component Name

1

Transfer Case Nuts
Special Tools:

2008 Chevrolet Silverado 1500

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

Sierra & Silverado