Chevrolet Silverado / GMC Sierra. Service manual — part 2951

Fig. 54: View Of Transfer Case Rear Case Half, Bracket, Bolts & Sealer
Courtesy of GENERAL MOTORS CORP.

Transfer Case Rear Case Half Installation

Callout

Component Name

1

Sealer GM P/N 12345739 (Canadian P/N
10953541), or equivalent

Tip:

NOTE:

Apply the proper amount of sealant to the flange when
assembling the transfer case. Excessive amounts of
sealant can plug the oil pump screen, resulting in internal
component failure.

2008 Chevrolet Silverado 1500

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

Silverado

Rear Output Shaft Seal and Bushing Installation

Ensure both sealing surfaces of the front and rear
case halves are free of dirt, oil and cleaning
solvent.

Apply a 2 mm (0.078 in) bead of sealant to the
front case half.

2

Transfer Case Rear Case Half
Tip:

Ensure the transfer case rear output shaft outer
retaining ring is in place and aligned prior to
mating case halves.

Use snap ring pliers to open the transfer case
rear output shaft outer retaining ring for the
transfer case rear output shaft rear bearing
assembly.

Insert a rubber coated screwdriver into the speed
sensor hole and lift up on the reluctor wheel to
engage the retaining ring with the rear bearing
assembly.

3

Transfer Case Bracket

4

Transfer Case Bolts (Qty: 17)

Tip: Tighten bolts by hand, do not use an air gun.

Tighten: 25 N.m (18 lb ft)

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 55: View Of Rear Output Shaft Seal & Bushing
Courtesy of GENERAL MOTORS CORP.

Rear Output Shaft Seal and Bushing Installation

2008 Chevrolet Silverado 1500

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

Silverado

Callout

Component Name

1

Transfer Case Rear Output Shaft Bushing (Light Duty)
Tip:

If the bushing was removed, a new bushing must
be installed.

Ensure the bushing is installed squarely into the
bushing bore.

Follow the steps below for use of the J 45380 .

1. Install the bushing on the finger section of the

J 45380 .

2. Install the finger section to the main body of

the J 45380 .

3. Position the bushing and tool to the rear case

half.

4. Press the bushing until the tool bottoms on

the rear case half.

Special Tools:

J 45380 Transfer Case Rear Bushing Remover and
Installer

2

Transfer Case Rear Output Shaft Seal (Light Duty)
Tip: Align the notch on the seal between the rear output
bearing retaining ring access holes, this will position the
weep hole down.

Special Tools

DT-48210 Seal Installer

J 8092 Driver Handle

3

Transfer Case Rear Output Shaft Seal (Heavy Duty)
Tip: Align the notch on the seal between the rear output
bearing retaining ring access holes, this will position the
weep hole down.

Special Tools

2008 Chevrolet Silverado 1500

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

Silverado