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8HP90 Automatic Transmission (Service Information): Installation

CAUTION:

When supporting or lifting the transmission at the oil pan the weight of the transmission must be distributed evenly on the lifting fixture. Failure to do so could damage the oil pan and transmission.

NOTE:

Make sure that the transmission dowel pins are seated in engine block and protrude far enough to hold transmission in alignment.

  1. Install the torque converter. Refer to TORQUE CONVERTER, INSTALLATION .
  2. If removed, install the rear transmission mount isolator. Refer to INSTALLATION .
    NOTE:

    Hold torque converter in place during transmission installation.

  3. Position the transmission in the vehicle.
    GC0170330Courtesy of CHRYSLER GROUP, LLC
  4. Install the bottom two transmission to engine bolts (1).
    GC0170174Courtesy of CHRYSLER GROUP, LLC
  5. Install the LH transmission to engine stud bolt (1).
    GC0170461Courtesy of CHRYSLER GROUP, LLC
  6. Install the RH transmission to engine stud bolt (1).
    GC0170419Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    RH shown in illustration, LH similar.

  7. Install the RH and LH transmission to engine stud bolts (1).
    GC0170125Courtesy of CHRYSLER GROUP, LLC
  8. Install the Left Hand (LH) transmission to engine bolts (1).
    GC0170211Courtesy of CHRYSLER GROUP, LLC
  9. Install the Right Hand (RH) transmission to engine bolts (1).
  10. Tighten all the transmission to engine bolts to the proper specification. Refer to TORQUE SPECIFICATIONS .
    GC0170438Courtesy of CHRYSLER GROUP, LLC
  11. Install the RH wiring harness bracket nut (1) and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
    GC0170480Courtesy of CHRYSLER GROUP, LLC
  12. Install the LH wiring harness bracket nut (1) and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
    GC0170096Courtesy of CHRYSLER GROUP, LLC
  13. Install the LH wiring harness bracket (2), the wiring harness bracket nut (1) and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
    GC0170356Courtesy of CHRYSLER GROUP, LLC
  14. Install the RH wiring harness bracket (2), the wiring harness bracket nut (1) and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
    GC0170336Courtesy of CHRYSLER GROUP, LLC
  15. Install the wiring harness bracket (2), the wiring harness bracket bolts (1) and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
    GC0152217Courtesy of CHRYSLER GROUP, LLC
  16. Rotate crankshaft in clockwise direction to line up the alignment hole (1) in the flexplate, then start the first bolt.
    GC0170157Courtesy of CHRYSLER GROUP, LLC
  17. Rotate the crankshaft clockwise until the torque converter bolts (1) are accessible. There are three sets of two bolts 120° apart. Install the remaining torque converter bolts and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
    GC0170414Courtesy of CHRYSLER GROUP, LLC
  18. Position the crossmember in place and install the crossmember bolts (1 and 3) and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
  19. Install the rear support isolator bolts (2) and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
    GC0170470Courtesy of CHRYSLER GROUP, LLC
  20. Remove the transmission jack (1).
    GC0170583Courtesy of CHRYSLER GROUP, LLC
  21. Connect transmission fluid cooler lines (1) to the transmission fittings (2) and install the clips (3).
    GC0152194Courtesy of CHRYSLER GROUP, LLC
  22. Connect the wiring harness (1) push pins to the transmission.
    GC0152193Courtesy of CHRYSLER GROUP, LLC
  23. Connect the transmission wire harness connector (1) to the transmission.
    GC0152192Courtesy of CHRYSLER GROUP, LLC
  24. Turn the locking mechanism lock (1) of the transmission wire harness connector (2) clockwise to secure.
    GC0170201Courtesy of CHRYSLER GROUP, LLC
  25. Position the MPR cable bracket/cable, install the bolts (2) and tighten to the proper specification. Refer to TORQUE SPECIFICATIONS .
  26. Install the MPR cable (1) on the MPR lever.
  27. Install the starter. Refer to 6.2L .
  28. Install the driveshaft. Refer to front FRONT DRIVE SHAFT , rear REAR DRIVE SHAFT .
  29. Install the exhaust. Refer to 6.2L/6.4L .
  30. Connect the right and left bank up stream oxygen sensors.
  31. Connect the negative battery cable.
  32. Perform the STANDARD PROCEDURE - TRANSMISSION FILL AFTER SERVICE. Refer to STANDARD PROCEDURE - TRANSMISSION FILL AFTER SERVICE .
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