Sierra 1500 4WD V6-4.3L (2008)
Pinion Gear: Service and Repair
Drive Pinion and Ring Gear Replacement (10.5 Inch Axle)
Drive Pinion and Ring Gear Replacement (10.5 Inch Axle)
Removal Procedure
1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the differential assembly. Refer to Differential Replacement (8.6, 9.5/9.5LD Inch Axles) (See: Service and Repair/Removal and
Replacement/Rear Drive Axle/Differential Replacement (8.6, 9.5/9.5LD Inch Axles))Differential Replacement (10.5 Inch, 11.5 Inch Axle) (See:
Service and Repair/Removal and Replacement/Rear Drive Axle/Differential Replacement (10.5 Inch, 11.5 Inch Axle)) .
3. Remove the pinion gear bearing retainer. Refer to Drive Pinion Housing and/or Seal Replacement (See: Drive Pinion Housing and/or Seal
Replacement) .
4. Remove the pinion and the pinion bearings. Refer to Drive Pinion Housing and/or Seal Replacement (See: Drive Pinion Housing and/or Seal
Replacement) .
5. Remove the ring gear bolts. Discard the bolts.
Notice: Refer to Ring Gear Removal Notice .
6. Remove the ring gear from the differential. Drive the gear off with a brass drift if necessary.
Installation Procedure
1. If the differential case has become separated, assemble the differential case by aligning the two arrows inside the differential case as shown.
Important: The mating surface of the ring gear and the differential case must be clean and free of burrs before installing the ring gear.
2. Install the ring gear to the differential case.
