Hummer H3. Manual — part 1691

Fig. 132: View Of Speed Reluctor Wheel
Courtesy of GENERAL MOTORS CORP.

48. Using a hydraulic press, install a NEW speed sensor tone wheel.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Fig. 133: Pressing Input Shaft Rear Support Bushing In With J 42176 & J 45757
Courtesy of GENERAL MOTORS CORP.

49. Using the J 42176 (1) and J 45757 (2), install the mainshaft rear support bushing in the rear

output shaft. See Special Tools.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Fig. 134: Identifying Rear Output Shaft
Courtesy of GENERAL MOTORS CORP.

50. Install the rear output shaft in the rear case half.

1. Spread the rear output shaft bearing outer retaining ring.

2. Install the rear output shaft bearing outer retaining ring until it is seated in the bearing

groove.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Fig. 135: Applying Proper Amount Of Sealant To Flange
Courtesy of GENERAL MOTORS CORP.

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

52. 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.

NOTE:

Apply the proper amount of sealant to the flange when
assembling the transfer case. Excessive amounts of sealant
can plug the oil pump screen, resulting in internal component
failure.

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.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3