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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transaxle - 4T80-E - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - On Vehicle >> Case Extension Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Support the vehicle with safety stands.
  3. Remove the right drive axle. Refer to Wheel Drive Shaft Replacement in Wheel Drive Shafts.
  4. Remove the wiring harness.
  5. Remove the vehicle speed sensor. Refer to Vehicle Speed Sensor Replacement .
  6. Remove the right transmission to engine brace. Refer to Transaxle Brace Replacement (Transmission Converter Housing to Eng)  or Transaxle Brace Replacement (Trans Extension Housing to Engine)  or Transaxle Brace Replacement (Transmission to Engine Head)  or Transaxle Brace Replacement (Transmission to Engine Oil Pan) .
  7. Remove the ground wire from the case.
    8. Fig 1: View of Case Extension Components
    GM687612Courtesy of GENERAL MOTORS CORP.
  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. Fig 2: Identifying Scavenge Tube
    GM97498Courtesy of GENERAL MOTORS CORP.
  11. Remove the 8 mm scavenge tube bolt.
  12. Remove the scavenge tube by prying on the differential.
  13. Remove the scavenge tube seal.
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