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Home >> Cadillac >> 2003 >> DeVille Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - 4T80-E >> Repair Instructions >> Case Extension Replacement >> Removal Procedure

Removal Procedure

  1. Raise and support the vehicle. Refer to LIFTING AND JACKING THE VEHICLE
  2. Support the vehicle with safety stands.
  3. Remove the right drive axle. Refer toAXLE SHAFTS .
  4. Remove the wiring harness.
  5. Remove the vehicle speed sensor. Refer to VEHICLE SPEED SENSOR (VSS) REPLACEMENT  .
    Fig 1: Removing Roller Thrust Bearing (132) & Selective Washer (133)
    G02098989Courtesy of GENERAL MOTORS CORP.
  6. Remove the right transmission to engine brace. Refer to ENGINE TO TRANSAXLE BRACE REPLACEMENT  .
  7. Remove the ground wire from the case.
  8. Remove the following parts from the case extension:
    • Five 13 mm bolts (128, 129)
    • One 15 mm stud (127)
  9. Remove the case extension (134) and the seal (126).
  10. Remove the roller thrust bearing (132) and the selective washer (133).
  11. Remove the 8 mm scavenge tube bolt.
  12. Remove the scavenge tube by prying on the differential.
  13. Remove the scavenge tube seal.
    Fig 2: Removing Scavenge Tube Seal
    G02098990Courtesy of GENERAL MOTORS CORP.
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