Hummer H2. Manual - part 2567

Fig. 237: Installing J 25025-1 
Courtesy of GENERAL MOTORS CORP. 

1. Install the J 25025-1 . 

Fig. 238: Identifying J 39855-2 
Courtesy of GENERAL MOTORS CORP. 

2. Remove the J 39855-2 which is part of kit J 39855 . 

 

2004 Hummer H2 

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

  

Fig. 239: View Of Pump To Drum Thrust Washer

 

2004 Hummer H2 

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

  

Courtesy of GENERAL MOTORS CORP.

3. Install the pump to drum thrust washer (601).  

4. Use J 36850 or equivalent to retain the washer to the pump.  

5. Install the oil pump o-ring seal into the oil pump o-ring groove - some models. 

 

2004 Hummer H2 

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

  

Fig. 240: Aligning Pump Cover To Case Gasket
Courtesy of GENERAL MOTORS CORP. 

6. Install the pump cover to case gasket (6).  

7. Install the oil pump assembly (4) into the case and align all holes properly. 

Fig. 241: View Of J 25025-1 
Courtesy of GENERAL MOTORS CORP. 

8. Install the pump to case bolts (2) with new O-ring seals (3). 

NOTE:

Refer to Fastener Notice in Cautions and Notices.

IMPORTANT: The pump to case bolt O-ring seals (3) must be replaced.

 

2004 Hummer H2 

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