Chevrolet Silverado / GMC Sierra. Manual — part 2952

Access Hole Plugs, Fill and Drain Plug, Vent, 2/4 Wheel Drive Actuator, Actuator Shaft
Position Sensor, and Vehicle Speed Sensor Installation

Callout

Component Name

1

Transfer Case Actuator Shaft Position Sensor O-
Ring Seal
Tip: Lightly lubricate the O-ring with clean
DEXRON®VI.

2

Transfer Case Actuator Shaft Position Sensor
Assembly

3

Transfer Case Actuator Shaft Position Sensor
Bolt/Screw

Tighten: 9 N.m (80 lb in)

4

Transfer Case Two/Four Wheel Drive Actuator
Assembly

5

Transfer Case Two/Four Wheel Drive Actuator
Bolt/Screw

Tighten: 18 N.m (13 lb ft)

6

Transfer Case Oil Drain Plug

Tip: Apply pipe sealant GM P/N 12346004
(Canadian P/N 10953480) to the oil drain plug
before installation.

Tighten: 18 N.m (13 lb ft)

NOTE:

Refer to Component Fastener Tightening Notice .

7

Transfer Case Oil Fill Plug
Tip: Apply pipe sealant GM P/N 12346004
(Canadian P/N 10953480) to the oil fill plug before
installation.

Tighten: 18 N.m (13 lb ft)

8

Transfer Case Vent
Tip: Apply retaining compound GM P/N 12377901
(Canadian P/N 10953504) to the vent pipe before

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Input Shaft Seal and Front Output Shaft Seal Installation

installation, if removed during disassembly.

9

Vehicle Speed Sensor O-Ring Seal
Tip: Lightly lubricate the O-ring with clean
DEXRON®VI.

10

Vehicle Speed Sensor Assembly

Tighten: 17 N.m (13 lb ft)

11

Transfer Case Access Hole Plugs (Qty: 2)

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 57: View Of Transfer Case Assembly, Input Shaft Seal & Front Output Shaft Seal
Courtesy of GENERAL MOTORS CORP.

Input Shaft Seal and Front Output Shaft Seal Installation

DESCRIPTION AND OPERATION

TRANSFER CASE IDENTIFICATION

Callout

Component Name

1

Transfer Case Input Shaft Seal
Tip: Ensure the bore of the front case half is free
of dirt, oil, and cleaning solvent.
Special Tools:
J 42738 Seal Installer

2

Transfer Case Front Output Shaft Seal

Special Tools

J 8092 Driver Handle

J 43484 Front Output Shaft Seal Installer

3

Transfer Case Assembly
Tip: Remove from J 3289-20 and remove the J
45759 from the transfer case.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - MP 3023/3024-NQH - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado