Assembly Procedure

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Fig 1: Inspecting Case Extension Housing

Courtesy of GENERAL MOTORS CORP.

Inspect the case extension assembly (6) for the following conditions:
- A damaged or porous sealing surface for the case extension seal
- A damaged or porous sealing surface for the vehicle speed sensor
- A damaged or porous sealing surface for the right drive shaft oil seal assembly
- Damaged bolt holes
- A worn or damaged front differential carrier bushing (7A) or output shaft bearing assembly (7B)
- A porous or damaged case extension housing

Fig 2: Locating Differential/Final Drive Carrier Assembly Thrust Bearing

Courtesy of GENERAL MOTORS CORP.

Install the differential carrier/case selective thrust washer (714) onto the differential/final drive carrier assembly (700).
Install the thrust bearing (715) onto the differential/final drive carrier assembly (700).
Affix the seal (8) onto the case extension (6).
Install the case extension assembly (6) onto the case (3).

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Install only two case extension bolts (5) for later removal.
Tighten: Tighten the bolts until the extension is flush to the case.
Perform end play check, refer to Differential Carrier End Play Check (FWD Only) .