For 1990-2009 cars

#### Tools Required

• | J 7079-2 Universal Driver Handle - Non-threaded

• | J 44386 Input/Output Bearing Installer

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)

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.
4. Apply GM P/N 12345493 (Canadian P/N 10953488) 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.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

6. Install the ten NEW differential ring gear bolts.

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

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 .

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).