Hummer H3. Manual — part 1531

Fig. 246: Identifying Shift Shaft Retaining Rings
Courtesy of GENERAL MOTORS CORP.

23. Install the 1st/2nd shift shaft retaining ring.

24. Install the 3rd/4th shift shaft retaining ring.

25. Install the 5th shift shaft retaining ring.

IMPORTANT:

Always use new retaining rings.

Do not install the retaining ring for the reverse shift
shaft at this time.

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3

26. Move the shift shafts in the NEUTRAL position.

Fig. 247: View Of Retaining Ring Groove On Reverse Shift Shaft
Courtesy of GENERAL MOTORS CORP.

27. Shift the reverse shift shaft forward.

28. Move the reverse shift lever forward past the retaining ring groove on the reverse shift shaft.

This allows the output shaft to clear the reverse shift fork during installation.

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3

Fig. 248: Locating 3rd/4th Shift Fork And 1st/2nd Shift Fork
Courtesy of GENERAL MOTORS CORP.

29. Position the 3rd/4th shift fork and the 1st/2nd shift fork on the synchronizer sleeves. To aid

during assembly, hold the shift forks in place with rubber bands.

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3

Fig. 249: Identifying 1st/2nd Shift Fork & 3rd/4th Shift Fork On Output Shaft
Assembly
Courtesy of GENERAL MOTORS CORP.

30. Install the output shaft assembly.

Hold the 1st/2nd shift fork (210) and the 3rd/4th shift fork (230) in position to the
output shaft.

While installing the output shaft, slide the 1st/2nd shift fork (210) and the 3rd/4th shift
fork (230) on the shift shafts.

The 1st/2nd shift fork (210) goes on the top 2 shift shafts.

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3