Chevrolet Silverado / GMC Sierra. Manual — part 2828

Fig. 83: Identifying Mating Surfaces On Case Half
Courtesy of GENERAL MOTORS CORP.

26. Install the locating pins in the front case and rear case half, if necessary.

27. Apply a 3.175 mm (1/8 in) bead of room temperature vulcanizing (RTV) sealant GM P/N

12345739 (Canadian P/N 10953541), or equivalent, to the mating surfaces of the front case
half.

IMPORTANT:

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

Ensure the locating pins are installed in the case halves.

2008 Chevrolet Silverado 1500

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

Silverado

Fig. 84: Rear Case Half & Front Case Half
Courtesy of GENERAL MOTORS CORP.

28. Lower the rear case half into place.

2008 Chevrolet Silverado 1500

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

Silverado

The rear output may require rotating to align the teeth with the planetary carrier.

Fig. 85: View Of Transfer Case Bolts
Courtesy of GENERAL MOTORS CORP.

NOTE:

This component is made of magnesium. Proper assembly is
required to prevent damage. Ensure the magnesium transfer
case housings are properly insulated from all external steel

2008 Chevrolet Silverado 1500

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

Silverado