Hummer H3. Manual — part 1692

Fig. 136: View Of Rear Case Half & Front Case Half
Courtesy of GENERAL MOTORS CORP.

53. Lower the rear case half into place.

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

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Fig. 137: Identifying Transfer Case Retaining 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
components or galvanic corrosion will occur. New nylon coated
case bolts and aluminum washers must be used. Use only

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

54. Inspect the case bolts nylon coating for cuts or tears.

55. Replace the case bolts if there is any damage to the nylon coating.

56. Install the case bolts with washers and the brackets.

Tighten: Tighten the case bolts to 25 N.m (18 lb ft).

aluminum fill and drain plugs. Use only aluminum brackets
under the case bolts. Ensure new seals are installed that have
a rubber insulated outside diameter and have no tears or cuts.
Extensive damage will occur if there is galvanic corrosion
between the magnesium and steel components.

IMPORTANT: The case bolts are self-tapping. They must be hand started.

Do not use power assisted tools to install the bolts.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Fig. 138: Installing Output Shaft Bushing
Courtesy of GENERAL MOTORS CORP.

57. Using the J 45380 , install the output shaft bushing, if removed or new. See Special Tools.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3