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Home >> Cadillac >> 2005 >> Escalade ESV >> Repair and Diagnosis >> External Pages >> Different car >> Section 150 (Automatic Transmission - 4L80-E/4L85-E - Overhaul) >> Repair Instructions >> Center Support and Gear Unit Assembly Removal

Center Support and Gear Unit Assembly Removal

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Tools Required

    Fig 1: Locating Center Support Bolt
    GM28408Courtesy of GENERAL MOTORS CORP.
    NOTE: Discard the center support bolt (25) after you have removed the bolt. Damage could result to the center support housing if you reuse the bolt.
  1. Remove the center support bolt (25).
    2. Fig 2: View Of Rear Oil Cooler Pipe Fitting & Seal
    GM54546Courtesy of GENERAL MOTORS CORP.
  2. Remove the rear oil cooler pipe fitting (90).
  3. Inspect the rear oil cooler pipe fitting (90) for damaged threads.
  4. Inspect the rear oil cooler pipe fitting seal (91) for nicks or cuts.
    5. Fig 3: Locating Center Support Retainer Ring
    GM334766Courtesy of GENERAL MOTORS CORP.
  5. Remove the center support retainer ring (633).
    6. Fig 4: Installing J 38868 & J 6129 To Transmission Main Shaft
    GM334768Courtesy of GENERAL MOTORS CORP.
  6. Attach the J 38868  to the transmission main shaft. See Special Tools .
  7. Tighten the thumb screw on the J 38868  . See Special Tools .
  8. Install the J 6129  to the J 38868  . See Special Tools .
  9. Turn the J 6129  so that the handle shaft contacts the transmission main shaft. See Special Tools .
  10. Remove the center support and gear unit assembly (640-672) by lifting the J 38868  with the J 6129  . See Special Tools .
  11. Remove the J 6129  and the J 38868  . See Special Tools .
    12. Fig 5: Installing Center Support & Gear Unit Assembly Into Special Tool
    GM28411Courtesy of GENERAL MOTORS CORP.
  12. Place the center support and gear unit assembly (640-672) into the J 21364-A  (not visible in the illustration) and then into the J 6116-A  . See Special Tools .
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