Chevrolet Silverado / GMC Sierra. Service manual — part 2814

Fig. 29: View Of Transfer Case Drain Plug
Courtesy of GENERAL MOTORS CORP.

4. Remove the drain plug and the fill plug. Ensure all of the transfer case fluid is drained out of

the transfer case.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 30: Inserting Screwdriver Behind Inner Race of Front Output Shaft Seal
Courtesy of GENERAL MOTORS CORP.

5. Remove the front output shaft seal by inserting a flat-tip screwdriver behind the inner race

of the seal.

6. Pry the inner seal race forward.

NOTE:

Refer to Transfer Case Seal Removal Notice .

IMPORTANT: The front output shaft seal is a two piece internal seal. The

inner seal race is a force fit on the front output shaft.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 31: Removing Inner Seal Race From Front Output Shaft
Courtesy of GENERAL MOTORS CORP.

7. Using a small pry bar, move the inner seal race forward on the front output shaft.

8. Remove the inner seal race from the front output shaft.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 32: Inserting Screwdriver Into Space Between Outer Race Seal Lip & Transfer
Case
Courtesy of GENERAL MOTORS CORP.

9. Insert a flat-tip screwdriver or a small pry bar between the outer lip of the front output shaft

seal and the transfer case.

10. Remove the remaining part of the front output shaft seal from the transfer case.

2008 Chevrolet Silverado 1500

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

Silverado