Hummer H3. Manual — part 1687

Fig. 116: Identifying Inner Lockup Hub
Courtesy of GENERAL MOTORS CORP.

29. Install the inner lockup hub.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Fig. 117: View Of Lockup Shift Collar Assembly
Courtesy of GENERAL MOTORS CORP.

30. Assemble the lockup mode shift collar assembly, if necessary.

1. Install the spring in the collar.

2. Install the hub, with the external tabs toward the spring.

3. Install the retainer ring in the collar.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Fig. 118: Identifying Lockup Mode Shift Fork
Courtesy of GENERAL MOTORS CORP.

31. Install the lockup mode shift fork to the lockup mode shift collar assembly.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Fig. 119: View Of Lockup Mode Shift Fork & Lockup Shift Collar Assembly
Courtesy of GENERAL MOTORS CORP.

32. Install the lockup mode shift collar assembly and lockup mode shift fork.

Slide the shift fork and collar assembly over the shift fork shaft.

Turn the mainshaft in order to align the slot on the inner lockup hub with the large
tooth area on the hub of the lockup shift collar assembly.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3