Chevrolet Silverado / GMC Sierra. Service manual — part 2811

Fig. 18: Identifying Transmission Mount Nuts
Courtesy of GENERAL MOTORS CORP.

7. Remove the transmission mount nuts and bolts.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 19: Identifying Crossmember & Bolts
Courtesy of GENERAL MOTORS CORP.

8. Remove the crossmember bolts.

9. Remove the crossmember.

10. Remove the transmission mount.

11. Install a suitable transmission jack to the transfer case.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 20: View Of Transfer Case & Transmission
Courtesy of GENERAL MOTORS CORP.

12. Remove the transfer case adapter nuts.

13. Remove the fuel pipe bracket from the studs.

14. Remove the transfer case from the adapter.

15. Rotate the transfer case so that it is perpendicular to the torsion bar mounting bracket.

16. Lower the transfer case.

17. Remove the gasket from the transfer case.

18. Remove the transfer case from the transmission jack.

Installation Procedure

IMPORTANT: Pull straight back on the transfer case in order to position

the transfer case so that it can be rotated parallel to the
transmission.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 21: View Of Transfer Case & Transmission
Courtesy of GENERAL MOTORS CORP.

1. Install the transfer case onto a suitable transmission jack.

2. Install a NEW transfer case gasket.

3. Rotate the transfer case so that it is parallel to the torsion bar mounting bracket.

4. Raise the transfer case into position.

5. Rotate the transfer case so that it is aligned with the adapter.

6. Install the transfer case to the adapter.

7. Install the fuel pipe bracket onto the studs.

IMPORTANT: When installing a new transfer case gasket, the gasket must

be installed with the tab oriented up, and the yellow printing
towards to front of the vehicle. Install the gasket without the
use of any type of sealant or of lubricant.

2008 Chevrolet Silverado 1500

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

Silverado