GM Service Manual Online
For 1990-2009 cars only

Special Tools

J 21366 Converter Holding Strap

Removal Procedure

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
  3. Remove the rear propeller shaft. Refer to Rear Propeller Shaft Replacement.
  4. Support the transmission with a transmission jack.
  5. Remove the transmission crossmember. Refer to Transmission Support Crossmember Replacement.
  6. Remove the transmission mount. Refer to Transmission Mount Replacement.
  7. Remove the catalytic converter pipe. Refer to Catalytic Converter Replacement.
  8. If the vehicle is equipped with a transfer case, remove the front propeller shaft. Refer to Front Propeller Shaft Replacement.

  9. Object Number: 408374  Size: SH
  10. Remove the torque converter access plug.

  11. Object Number: 1708215  Size: SH
  12. Remove the left flywheel inspection cover.
  13. Remove the starter motor. Refer to Starter Motor Replacement.

  14. Object Number: 1705430  Size: SH
  15. Remove the right flywheel inspection cover.

  16. Object Number: 1708265  Size: SH
  17. Remove the flywheel to torque converter bolts.
  18. Lower the transmission to gain access to the top and sides of the transmission.

  19. Object Number: 1708319  Size: SH
  20. Disconnect the vent tube hose and the electrical connections from the transfer case, if equipped.
  21. Remove the transfer case, if equipped. Refer to the appropriate procedure:
  22. •  Transfer Case Assembly Replacement for the BW 4485-NR3 transfer case
    •  Transfer Case Assembly Replacement for the MP 3023/3024-NQH transfer case

    Object Number: 1708338  Size: SH
  23. Remove the 2 bolts securing the heat shield to the transmission.
  24. Remove the transmission heat shield.

  25. Object Number: 1707190  Size: SH
  26. Remove the range selector cable retaining clip (1) from the transmission range selector cable.
  27. Remove the range selector cable (2) from the range selector lever ball stud and the range selector cable bracket.

  28. Object Number: 1705102  Size: SH
  29. Disconnect the transmission vent hose.
  30. Disconnect the transmission electrical connector from the transmission.
  31. Remove the wire harness from the transmission.

  32. Object Number: 396800  Size: SH
  33. Remove the bolt that secures the fuel line bracket to the left side of the transmission.

  34. Object Number: 1705099  Size: SH
  35. Disconnect the transmission oil cooler lines from the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Replacement.
  36. Plug the transmission oil cooler line connectors in the transmission case.

  37. Object Number: 1708536  Size: SH
  38. Remove the 8 bolts securing the transmission to the engine.
  39. Pull the transmission straight back.
  40. Install the J 21366 onto the transmission bell housing to retain the torque converter.
  41. Remove the transmission from the vehicle while simultaneously removing the fluid level indicator tube.
  42. Flush the transmission oil cooler and cooling lines if necessary. Refer to Transmission Fluid Cooler Flushing and Flow Test.

Installation Procedure

  1. Install the J 21366 onto the transmission bell housing to retain the torque converter.
  2. Support the transmission with a transmission jack.
  3. Raise the transmission into place while simultaneously installing the fluid indicator tube.
  4. Remove the J 21366 from the transmission.
  5. Slide the transmission straight onto the locating pins while lining up the marks on the flywheel and the torque converter.
  6. The torque converter must rotate freely by hand.

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1708536  Size: SH
  7. Install the 8 bolts securing the transmission to the engine.
  8. Tighten
    Tighten the bolts to 50 N·m (37 lb ft).


    Object Number: 1705102  Size: SH
  9. Connect the transmission vent hose.
  10. Install the wire harness to the transmission.
  11. Connect the transmission electrical connector to the transmission.

  12. Object Number: 1707190  Size: SH
  13. Install the range selector cable (2) to the range selector cable bracket and the range selector lever ball stud.
  14. Install the range selector cable retaining clip (1) to the transmission range selector cable.

  15. Object Number: 1708338  Size: SH
  16. Install the transmission heat shield.
  17. Install the 2 bolts securing the heat shield to the transmission.
  18. Tighten
    Tighten the bolts to 17 N·m (13 lb ft).

  19. Install the transfer case, if equipped. Refer to the appropriate procedure:
  20. •  Transfer Case Assembly Replacement for the BW 4485-NR3 transfer case
    •  Transfer Case Assembly Replacement for the MP 3023/3024-NQH transfer case

    Object Number: 1708319  Size: SH
  21. Connect the vent hose and electrical connectors to the transfer case, if equipped.

  22. Object Number: 1708265  Size: SH
  23. If reusing the torque converter bolts, clean the bolt threads and apply LOCTITE 242, GM P/N 12345382 (Canadian P/N 10953489), or equivalent to the threads prior to installation.
  24. Install the flywheel to torque converter bolts.
  25. Tighten
    Tighten the bolts to 63 N·m (46 lb ft).


    Object Number: 1705430  Size: SH
  26. Install the right flywheel inspection cover and bolt.
  27. Tighten
    Tighten the bolt to 10 N·m (89 lb in).

  28. Install the starter motor. Refer to Starter Motor Replacement.

  29. Object Number: 1708215  Size: SH
  30. Install the left flywheel inspection cover and bolt.
  31. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 408374  Size: SH
  32. Install the torque converter access plug.
  33. If the vehicle is equipped with a transfer case, install the front propeller shaft. Refer to Front Propeller Shaft Replacement.
  34. Install the catalytic converter pipe. Refer to Catalytic Converter Replacement.
  35. Install the transmission mount. Refer to Transmission Mount Replacement.
  36. Install the transmission crossmember. Refer to Transmission Support Crossmember Replacement.
  37. Remove the transmission jack.
  38. Install the rear propeller shaft. Refer to Rear Propeller Shaft Replacement.

  39. Object Number: 1705099  Size: SH
  40. Connect the oil cooler lines to the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Replacement
  41. Lower the vehicle.
  42. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection
  43. Fill the transmission to the proper level. Refer to Fluid Capacity Specifications.
  44. Note: It is recommended that transmission adaptive pressure (TAP) information be reset.

    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, the engine control module (ECM), powertrain control module (PCM), or transmission control module (TCM) will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.

  45. Reset the TAP values. Refer to Transmission Adaptive Functions.
  46. If a replacement transmission is installed, program the TCM. Refer to Control Module References.