Hummer H3. Manual — part 1514

Fig. 184: Identifying Extension Housing Inspection Areas - RWD
Courtesy of GENERAL MOTORS CORP.

1. Clean the extension housing in a suitable cleaning solvent and air dry.

2. Remove the sealer from the extension sealing surfaces.

3. Inspect the extension for being broken or cracked.

4. Inspect the rear bushing (6) for wear or damage. The bushing is serviced only with the

extension housing.

5. Inspect the shift shaft bushings (297) for excessive wear.

NOTE:

Refer to Machined Surface Damage Notice .

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3

6. Replace the extension if any of the above conditions are found.

7. Inspect the sealing surfaces for damage.

8. Repair small scratches or nicks with a soft stone.

9. Inspect the case threaded bolt holes for damage.

10. Repair any damaged threads.

11. Inspect the shift control housing location pins (523) for being loose or missing.

12. Repair or replace any damaged location pins.

Fig. 185: Identifying Reverse Control Lever Restriction Operation
Courtesy of GENERAL MOTORS CORP.

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3

13. Inspect the reverse control lever restriction operation for the following conditions:

Moves in and out

Rotates

14. Replace the reverse control lever restriction if faulty. Refer to Transmission Extension

Disassemble and Transmission Extension Assemble.

Intermediate Case

Fig. 186: View Of Intermediate Case Inspection Areas
Courtesy of GENERAL MOTORS CORP.

1. Clean the intermediate case in a suitable cleaning solvent and air dry.

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3

2. Remove the sealer from the case sealing surfaces.

3. Inspect the case for being broken or cracked.

4. Inspect the output shaft bearing bore (a) for the following conditions:

A spun bearing

Cracks

5. Inspect the countershaft rear bearing bore (b) for the following conditions:

A spun bearing

Cracks

6. Inspect the shift shaft bushings (296) for excessive wear.

7. Replace the intermediate case if any of the above conditions are found. The intermediate

case is only serviced with the front case.

8. Inspect the sealing surfaces for damage.

9. Repair small scratches or nicks with a soft stone.

10. Inspect the case threaded bolt holes for damage.

11. Repair any damaged threads.

12. Inspect the location pins (71 and 72) for being loose or missing.

13. Repair or replace any damaged location pins.

Input Shaft Bearing Retainer

NOTE:

Refer to Machined Surface Damage Notice .

2007 Hummer H3

2007 TRANSMISSION Manual Transmission - Aisin AR5 - H3