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Extension Housing Assembly: Removal

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  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
G00087663Courtesy of GENERAL MOTORS CORP.