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Home >> Chevrolet >> 2024 >> Tahoe Commercial, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 10L80 (MHS MHU MQC) - Repair Instructions - On Vehicle (1 Of 2) >> Repair Instructions - On Vehicle >> Automatic Transmission Case Extension Replacement (RWL) >> Removal Procedure

Removal Procedure

  1. Raise and support the vehicle. Lifting and Jacking the Vehicle
  2. GM5544191Courtesy of GENERAL MOTORS COMPANY

    Rear Propeller Shaft Bolt (1) - Remove [4x]

  3. GM5544194Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft (1) - Remove

  4. Support the transmission with a suitable jack.
  5. GM5565710Courtesy of GENERAL MOTORS COMPANY

    Remove the wiring harness (2) from the 3 wiring harness retainers (1) and reposition the wiring harness as necessary.

  6. If replacing the transmission support crossmember, transfer the 3 wiring harness retainers to the new transmission support crossmember.
  7. GM5587388Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Nut (1) - Remove

  8. Transmission Support Crossmember Nut (2) - Remove [4x]
  9. Transmission Support Crossmember Bolt (3) - Remove [4x]
  10. GM5587449Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember (1) - Remove

  11. GM5587069Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Bolt (1) - Remove [2x]

  12. Transmission Mount (2) - Remove
  13. GM5654072Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Remove the 2 wiring harness retainers (1).

  14. GM5596345Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Case Extension Bolt (1) - Remove [6x]

  15. Automatic Transmission Case Extension (2) - Remove
  16. Automatic Transmission Case Extension Seal (3) - Remove and DISCARD