Differential Case Assemble

Tools Required

• J 7079-2  Universal Driver Handle - Non-Threaded. See Special Tools .
• J 44386 Input/Output Bearing Installer

Fig 1: Differential Case & Components
Courtesy of GENERAL MOTORS CORP.
1. Clean all parts in a suitable solution before assembling.
IMPORTANT:
• Refer to Shimming Procedures  before assembling the differential case.
• Lubricate the bearing inner and outer race surface before assembly.
2. Install the following parts into the differential case (7):
   • The pinion gears (3)
   • The pinion gear thrust washers (2)
   • The side gears (5)
   • The side gear thrust washers (4)
   • The pinion shaft (6)
   • NEW snap rings (1)
Fig 2: View Of VSS Ring
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Apply even pressure to the vehicle speed sensor (VSS) ring during installation.
3. Install the vehicle speed sensor (VSS) ring onto the differential case.
Fig 3: Differential Ring Gear & Bolts
Courtesy of GENERAL MOTORS CORP.
4. Apply P/N 21005994 or equivalent to the differential ring gear bolts.
IMPORTANT: The machined surface on the differential ring gear faces the differential case.
5. Install the differential ring gear onto the differential case.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
6. Install the ten NEW differential ring gear bolts.

   Tighten:  Tighten the differential ring gear bolts to 95 N.m (68 lb ft).

Fig 4: Left Differential Side Bearing & Shim
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Refer to Shimming Procedures  before installing the left differential side bearing.
7. Install a NEW left differential side bearing and shim onto the differential case using the J 44386 and the J 7079-2  . See Special Tools .
Fig 5: Right Differential Side Bearing & Shim
Courtesy of GENERAL MOTORS CORP.
IMPORTANT: Refer to Shimming Procedures  before installing the right differential side bearing.
8. Install a NEW right differential side bearing and shim onto the differential case using the J 44386 (2) and the J 7079-2  (1). See Special Tools .