Chevrolet Silverado / GMC Sierra. Service manual — part 2824

Fig. 65: View Of Front Case Vent
Courtesy of GENERAL MOTORS CORP.

4. If the vent is removed, apply pipe sealant GM P/N 12346004 (Canadian P/N 10953480) to

the threads on the vent.

5. Install the vent.

Tighten: Tighten the vent to 6 N.m (53 lb in).

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 66: Installing Input Shaft Bearing With Brass Drift
Courtesy of GENERAL MOTORS CORP.

6. Install the input shaft bearing in the front case half.

Use a hammer and a brass drift only on the outer bearing race.

Ensure the bearing is kept square to the bore while installing.

IMPORTANT: Lubricate all of the bearings and bearing journals with

transfer case fluid during installation.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 67: Aligning Brass Drift On Outer Bearing Race
Courtesy of GENERAL MOTORS CORP.

7. Install the front bearing, for the front output shaft, in the front case half.

Use a hammer and a brass drift only on the outer bearing race.

Ensure the bearing is kept square to the bore while installing.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado

Fig. 68: View Of Front Output Shaft Cup Plug
Courtesy of GENERAL MOTORS CORP.

8. If it is a new shaft or if the cup plug was removed, install the cup plug in the front output

shaft, using a suitable driver. Install the cup plug 1 mm (0.039 in) from flush with the end of
the shaft.

2008 Chevrolet Silverado 1500

2008 TRANSMISSION Transfer Case - BW 4485-NR3 - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra &

Silverado