Hummer H3. Manual — part 1024

Fig. 142: View Of Differential And Pinion Shaft
Courtesy of GENERAL MOTORS CORP.

14. Remove the pinion gear shaft.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 143: Identifying Differential Pinion Gears & Thrust Washers
Courtesy of GENERAL MOTORS CORP.

15. Remove the two differential pinion gear thrust washers.

Drive the pinion gear thrust washers out using a brass drift and a hammer.

16. Remove the two differential pinion gears.

Rotate the differential side gears in opposite directions in order to remove the differential
pinion gears.

Mark the differential pinion gears and the thrust washers top and bottom.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 144: Identifying Differential Side Gears & Thrust Washers
Courtesy of GENERAL MOTORS CORP.

17. Remove the differential side gear and the side gear thrust washer.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3

Fig. 145: View Of Locking Differential Side Gear & Thrust Washer
Courtesy of GENERAL MOTORS CORP.

18. Remove the locking differential side gear and thrust washer.

Mark the differential side gears and the thrust washers left and right.

LOCKING DIFFERENTIAL CLEANING AND INSPECTION

1. Clean all of the parts using an approved solvent.

2. Visually inspect all the parts for excessive wear or breakage. Replace the parts if necessary.

3. Check the pinion gear and the side gear teeth for any the following conditions:

Wear

Cracks

Scoring

Spalling

4. Check the thrust washer for wear.

2007 Hummer H3

2007 Driveline/Axle Rear Drive Axle - H3