Hummer H3. Manual — part 1662

TRANSFER CASE SHIFT CONTROL SWITCH REPLACEMENT

Fig. 23: Transfer Case Shift Control Switch Replacement
Courtesy of GENERAL MOTORS CORP.

Callout

Component Name

Fastener Tightening Specifications: Refer to Fastener Tightening
Specifications.Preliminary Procedure: Remove the transfer case. Refer to Transfer
Case Assembly Replacement.

NOTE:

Refer to Fastener Notice .

1

Bolt, Transfer Case Adapter (Qty: 6)

Tighten: 50 N.m (37 lb ft)

2

Adapter, Transfer Case to Transmission

3

O-ring, Transfer Case Adapter
Tip: DO NOT reuse the O-ring. Replace it.

4

Gasket, Transfer Case Adapter
Tip: DO NOT reuse the gasket. Replace it.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Transfer Case Shift Control Switch Replacement

REPAIR INSTRUCTIONS - OFF VEHICLE

TRANSFER CASE DISASSEMBLE

Tools Required

J 2619-01 Slide Hammer

J 3289-20 Holding Fixture

J 6125-1B Slide Hammer with Adapter

J 8614-01 Flange and Pulley Holding Tool

J 22912-B Rear Pinion and Axle Bearing Remover

J 23129 Universal Seal Remover

J 23907 Slide Hammer with Bearing Adapter

J 29369-1 Bushing and Bearing Remover

J 45278 Seal Remover. See Special Tools.

J 45358 Case Spreader. See Special Tools.

J 45380 Transfer Case Rear Bushing Remover and Installer. See Special Tools.

J 45548 Mainshaft Support Bushing/Bearing Remover. See Special Tools.

J 45759 Assembly Fixture. See Special Tools.

Disassembly Procedure

Callout

Component View

Fastener Tightening Specifications: Refer to Fastener Tightening
Specifications.Preliminary Procedure: Remove the instrument panel (I/P) center trim
panel. Refer to Instrument Panel Center Trim Panel Replacement (Left Hand Drive)
or Instrument Panel Center Trim Panel Replacement (Right Hand Drive) .

NOTE:

Refer to Fastener Notice .

1

Control Switch Mounting Nut (Qty: 3)
Tip: Disconnect the electrical connector.

Tighten: 6 N.m (53 lb in)

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

Fig. 24: Identifying Assembly Fixture J 45759
Courtesy of GENERAL MOTORS CORP.

1. Using the adapter studs, attach the J 45759 to the transfer case. See Special Tools. All of

the transfer case disassembly procedures can be performed with the case mounted to the J

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3

45759 . See Special Tools.

Fig. 25: View Of J 3289-20 Mounted TO Workbench
Courtesy of GENERAL MOTORS CORP.

2. Mount the J 3289-20 (1) to a sturdy workbench.

3. Install the J 45759 (2) into J 3289-20 (1) and secure with pivot pin. See Special Tools.

2007 Hummer H3

2007 TRANSMISSION Transfer Case - BW 4493/4494 - H3