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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 816 (Transfer Case - Mp 3023/3024 (NQH) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transfer Case Input Shaft Seal Replacement (with MYD) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Start vehicle and shift the transfer case to 2WD/2High.
  2. Turn the vehicle off.
  3. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection (without K4B)Battery Negative Cable Disconnection and Connection (with K4B)
  4. Drain the fluid from the transfer case. Transfer Case Fluid Replacement 
  5. GM5637173Courtesy of GENERAL MOTORS COMPANY

    Disconnect the transfer case two/four wheel drive actuator electrical connector (1).

  6. Disconnect the transfer case two/four wheel drive actuator position sensor electrical connector (2).
  7. Disconnect the wiring harness retainers and reposition the harness as necessary.
  8. GM5785007Courtesy of GENERAL MOTORS COMPANY

    .Transfer Case Two/Four Wheel Drive Actuator Sensor Bolt (1) - Remove [4x]

  9. Transfer Case Two/Four Wheel Drive Actuator (2) - Remove
  10. GM5659417Courtesy of GENERAL MOTORS COMPANY

    Front Axle Propeller Shaft Slip Yoke Boot Clamp (1) @Front Axle Propeller Shaft - Remove and DISCARD

  11. GM5659414Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    When removing the propeller shaft, do not attempt to remove the shaft by pounding on the yoke ears or using a tool between the yoke and the universal joint. If the propeller shaft is removed by using such means, this may lead to premature failure of the joint.

    Mark a reference point between the front axle propeller shaft and the front axle drive pinion flange.

  12. Front Axle Propeller Shaft Bolt (2) - Remove [4x]
  13. Front Axle Propeller Shaft Retainer (1) - Remove [2x]
  14. GM5246870Courtesy of GENERAL MOTORS COMPANY

    Front Axle Propeller Shaft (1) - Remove

  15. GM5004152Courtesy of GENERAL MOTORS COMPANY

    Disconnect the vent hose (1) from the transfer case.

  16. GM5246256Courtesy of GENERAL MOTORS COMPANY

    Mark the relationship of the propeller shaft (2) to the rear wheel drive shaft flange.

  17. Rear Propeller Shaft Bolt (1) - Remove [4x]
  18. GM5246259Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft (1) - Remove

  19. Support the transmission with a suitable jack.
  20. GM5683198Courtesy of GENERAL MOTORS COMPANY

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

  21. GM5237949Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember Nut (2) - Remove [4x]

  22. Transmission Support Crossmember Bolt (1) - Remove [4x]
  23. GM5227165Courtesy of GENERAL MOTORS COMPANY

    Transmission Support Crossmember (1) - Remove

  24. GM5793501Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Bolt (2) - Remove and DISCARD [2x]

  25. Transmission Mount Heat Shield (1) - Remove
  26. Transmission Mount (3) - Remove and DISCARD
  27. Using a suitable transmission jack, support the transfer case.
  28. Using suitable straps or chains, secure the transfer case to the transmission jack.
  29. GM5921885Courtesy of GENERAL MOTORS COMPANY

    Transfer Case Nut (1) - Remove [8x]

  30. Lower the transfer case (2) out of the vehicle.
  31. Transfer Case Adapter Gasket (3) - Remove and DISCARD
  32. GM5810146Courtesy of GENERAL MOTORS COMPANY

    Drill a pilot hole in the body of the transfer case input shaft seal (1).

  33. Insert a self-tapping screw into the transfer case input shaft seal (1).
    34. NOTE:

    Do NOT use a pry tool to remove the transfer case input shaft seal (1).

  34. Using pliers or slide hammer type tool, remove and DISCARD the transfer case input shaft seal (1).
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