Hummer H3. Manual — part 1526

Fig. 227: View Of 1st/2nd Synchronizer Hub Retaining Ring
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: The retaining ring is a select fit. Always install a new

retaining ring.

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3

22. Select the maximum thickness retaining ring for the 1st/2nd synchronizer hub, that will fit in

the groove. Refer to 1st and 2nd Gear Synchronizer Retaining Ring Specifications.

23. Install the 1st/2nd synchronizer hub retaining ring.

Fig. 228: Locating 1st Gear Synchronizer Rings

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3

Courtesy of GENERAL MOTORS CORP.

24. Install the 1st gear synchronizer rings. Align the blocking ring tabs to the notches in the hub.

Fig. 229: View Of 1st Gear Spacer
Courtesy of GENERAL MOTORS CORP.

25. Install the 1st gear spacer.

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3

Fig. 230: Identifying 1st Gear Thrust Washer Lock Pin
Courtesy of GENERAL MOTORS CORP.

26. Install the 1st gear thrust washer lock pin.

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3