Disassembly Procedure

Remove the differential side bearings by performing the following steps:
1. Install the J 22912-O1 (2) and the J 8107-2 (7.6 inch axle) or the J 8107-4 (8.6 inch axle) (1) as shown.
2. Remove the differential side bearings using the J 22912-01 and a hydraulic press.
  
  Fig 1: Installing J 22912-O1, J 8107-2 (7.6 Inch Axle) Or J 8107-4
  Courtesy of GENERAL MOTORS CORP.
  
  NOTE: Do not pry the ring gear from the differential case. Prying the ring gear from the differential case may cause damage to the ring gear and/or the differential case.
Remove the ring gear bolts.
The ring gear bolts have left-handed threads.
Remove the ring gear from the differential case.
Drive the ring gear off with a brass drift if necessary.

Fig 2: Removing Ring Gear From Differential Case
Courtesy of GENERAL MOTORS CORP.
Remove the differential pinion gears and the differential side gears by doing the following:
1. Remove the pinion shaft lock bolt.
2. Remove the pinion shaft.
3. Roll the differential pinion gear out of the case with the pinion thrust washers.
4. Remove the differential side gears and the side gear thrust washers.
  Mark the pinion gears top and bottom and the differential side gears left and right.
  
  Fig 3: Removing Differential Side Gears And Side Gear Thrust Washers
  Courtesy of GENERAL MOTORS CORP.