Hummer H3. Manual — part 809

5. Install the low and reverse support retainer ring (676) into the case.

REACTION SUN GEAR INSTALLATION

Tools Required

J 34196-B Transmission Bushing Service Set. See Special Tools.

J 8092 Driver Handle

Installation Procedure

retainer spring. This will allow the retainer ring to fully seat
in all of the transmission case lugs. If the retainer ring lays
up against the retainer spring, the retainer ring will not fully
seat. Possible damage to the transmission case lugs can
occur if the low and reverse clutch support retainer ring is
not fully seated in the transmission case lug.

IMPORTANT: Do not remove the retaining ring (671), except to replace it.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

Fig. 285: Inspection Areas On Reaction Sun Gear
Courtesy of GENERAL MOTORS CORP.

1. Inspect the reaction sun gear (673) for the following defects:

Nicks

Scores

Damaged spline or teeth

A worn bushing (672)

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

A loose or weak retaining ring (671)

Fig. 286: Removing Reaction Sun Bushing From Reaction Sun Gear
Courtesy of GENERAL MOTORS CORP.

2. If the reaction sun gear bushing (672) needs replacement, use J 34196-1 which is part of kit

J 34196-B with J 8092 to remove the reaction sun bushing (672) from the reaction sun gear

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3

(673). See Special Tools.

Fig. 287: Installing Reaction Sun Bushing
Courtesy of GENERAL MOTORS CORP.

3. Using J 34196-1 which is part of kit J 34196-B with J 8092 , install a new reaction sun

bushing (672) into the reaction sun gear (673). See Special Tools.

2007 Hummer H3

2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3