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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 853 (Automatic Transaxle Diagnosis, Service & Repair - 4T65-E) >> Repair Instructions >> Case Extension Housing Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise and support the vehicle.
  2. Disconnect the right drive axle from the transaxle. Refer to AXLE SHAFT .
  3. Remove the transaxle brace. Refer to AUTOMATIC TRANSMISSION BRACE REPLACEMENT  .
  4. Remove the vehicle speed sensor. Refer to INPUT SPEED SENSOR REPLACEMENT  .
  5. Remove the case extension housing bolts (5).
  6. Remove the case extension housing (6) with the axle seal and the O-ring (8).
    Fig 1: Removing Case Extension Housing (1 Of 2)
    G01502019Courtesy of GENERAL MOTORS CORP.
  7. Inspect the case extension housing (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 axle oil seal
    • A damaged or porous sealing surface for the case extension housing
    • A damaged or worn differential carrier bushing or output shaft bearing
    • Damaged bolt holes
    • Inspect the drive axle seal and replace if necessary
    Fig 2: Removing Case Extension Housing (2 Of 2)
    G01502020Courtesy of GENERAL MOTORS CORP.
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