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Home >> Oldsmobile >> 2003 >> Aurora >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - 4T80-E >> Repair Instructions >> Final Drive Assembly Replacement >> Removal Procedure

Removal Procedure

  1. Remove the case extension. Refer to CASE EXTENSION REPLACEMENT  .
  2. Rotate the manual shaft (16) counterclockwise in order to place the transaxle in Park (P) and prevent the differential from rotating.
    3. Fig 1: Rotating Manual Shaft To Place Transmission In Park & To Prevent Differential From Turning
    G01506588Courtesy of GENERAL MOTORS CORP.
  3. Remove the 4 bolts (119) from the differential housing to transaxle case.
  4. Remove the differential carrier.
    5. Fig 2: Removing Differential Carrier
    G01506589Courtesy of GENERAL MOTORS CORP.
  5. Push on the output shaft in order to expose the left side differential gear snap ring. Remove the left side differential gear to output shaft snap ring (56).
  6. Remove the differential side gear (118) and thrust washer (117).
    7. Fig 3: Removing Left Side Differential Gear
    G01506590Courtesy of GENERAL MOTORS CORP.
  7. Remove the final drive carrier (100) and the thrust bearing.
  8. Remove the final drive sun gear (121).
    9. Fig 4: Removing Final Drive Assembly
    G01506591Courtesy of GENERAL MOTORS CORP.
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