Hummer H2. Manual - part 2536

3. Inspect the low and reverse clutch support (679) for loose cam and cam surface finish. Check the support 

for cracks and damaged lugs. 

Fig. 117: Identifying Low And Reverse Roller Clutch Assembly 
Courtesy of GENERAL MOTORS CORP. 

4. Clean and install the low and reverse roller clutch assembly (678) into the low and reverse clutch support 

 

2004 Hummer H2 

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E

  

(679). Install the low and reverse retainer ring (677). 

LOW AND REVERSE CLUTCH SUPPORT INSTALLATION 

Fig. 118: Checking Low And Reverse Roller Clutch Race Rotation 
Courtesy of GENERAL MOTORS CORP. 

1. Install the low and reverse roller clutch race (675). Simultaneously, turn and insert the race.  

2. Rotate the race in order to verify proper operation. The race should only rotate in one direction. 

 

2004 Hummer H2 

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E

  

Fig. 119: View Of Low And Reverse Clutch Support Retainer Spring 
Courtesy of GENERAL MOTORS CORP. 

3. Install the (680) into the case. 

 

2004 Hummer H2 

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E

  

Fig. 120: Aligning Wide Case Lug With Wide Low And Reverse Clutch Support Notch 
Courtesy of GENERAL MOTORS CORP. 

IMPORTANT: Align the wide low and reverse clutch support notch with the wide case 

lug.

 

2004 Hummer H2 

2004 TRANSMISSION/TRANSAXLE Automatic Transmission - Overhaul - 4L60-E/4L65-E