Extension Housing Assembly: Removal

1. Raise and suitably support the vehicle.
2. Support the transmission with a transmission jack.
3. Place a drain pan under the vehicle.
4. Remove the drive shaft. See appropriate DRIVE SHAFTS & UNIVERSAL JOINTS article in DRIVELINE/AXLES.
5. Remove the transmission mount.
6. Remove the case extension bolts (1).
7. Remove the case extension (2). See Fig 1 .
8. Remove and discard the case extension "O" ring seal (3).

Fig 1: Removing & Installing Extension Housing Assembly

Courtesy of GENERAL MOTORS CORP.