Hummer H2. Manual — part 2624

Fig. 33: Removing Rear Extension Housing Seal
Courtesy of GENERAL MOTORS CORP.

Installation

1. Lubricate the inside diameter of the NEW seal with Transjel(R) lubricant.

2. Install the new seal using rear extension seal installer and a soft faced mallet. See Fig. 34 .

3. Remove the drain pan.

4. Install the drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in

DRIVELINE/AXLES.

5. Fill transmission with appropriate fluid to proper level. See LUBRICATION .

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2

Fig. 34: Installing Rear Extension Housing Rear Transmission Oil Seal
Courtesy of GENERAL MOTORS CORP.

FILLER TUBE & SEAL

Removal

1. Remove the transmission oil level indicator. Raise and suitably support the vehicle.

2. Remove frame-to-engine protection shield bolts. See Fig. 35 . Remove engine protection shield. Remove

the catalytic converter guard mounting bolts and guard from vehicle. See Fig. 36 .

3. Disconnect the connector position assurance (CPA) retainers. Disconnect the oxygen sensor electrical

connectors (1, 2). See Fig. 37 .

4. Remove the catalytic converter to muffler flange nuts. Remove the exhaust manifold pipe-to-catalytic

converter nuts. Remove the catalytic converter.

5. Remove the transmission heat shield bolt and shield. See Fig. 38 . Remove the nut securing the

transmission oil lever indicator tube to the transmission housing.

6. Place a drain pan under the vehicle. Remove the transmission oil level indicator tube from the

transmission case. See Fig. 39 . Remove the seal from the transmission case.

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2

Fig. 35: Identifying Frame-To-Engine Protection Shield
Courtesy of GENERAL MOTORS CORP.

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2

Fig. 36: Identifying Catalytic Converter Guard
Courtesy of GENERAL MOTORS CORP.

2004 Hummer H2

2003-04 AUTOMATIC TRANSMISSIONS Servicing - H2