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Home >> Pontiac >> 2003 >> Aztek FWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle Diagnosis, Service & Repair - 4T65-E >> Repair Instructions >> Case Extension Housing Replacement >> Removal Procedure

Removal Procedure

  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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