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8HP70 Automatic Transmission (Service Information): Removal

CAUTION:

The transmission and torque converter must be removed as an assembly to avoid component damage. The converter driveplate, oil pump, or oil seal can be damaged if the converter is left attached to the driveplate during removal. Be sure to remove the transmission and converter as an assembly.

NOTE: If the transmission is being reconditioned (clutch/seal replacement) or replaced, it is necessary to perform the TCM Adaptation Procedure using the scan tool. Refer to TRANSMISSION CONTROL MODULE (TCM) ADAPTATION .
  1. Disconnect the battery negative cable.
  2. Raise and support the vehicle.
  3. Remove the rear section of exhaust. Refer to 5.7L, MUFFLER, EXHAUST, REMOVAL .
  4. Remove the heat shield below rear driveshaft.
  5. Disconnect the Mechanical Park Release (MPR) cable (1) from the lever (2).
    GC0158366Courtesy of CHRYSLER GROUP, LLC
  6. Rotate the MPR lever (2) forward to engage neutral position and secure it with a suitable zip tie (3).
  7. Remove the rear driveshaft. Refer to SHAFT, DRIVE, REAR, REMOVAL .
  8. Support the transmission with a suitable jack.
    NOTE: Be careful not to damage to transmission pan.
    GC0158384Courtesy of CHRYSLER GROUP, LLC
  9. Remove the transmission mount nuts (2).
    GC0158349Courtesy of CHRYSLER GROUP, LLC
  10. Remove the cross-member bolts (1 and 3).
  11. Remove the cross-member.
  12. If 4WD, remove the front driveshaft. Refer to SHAFT, DRIVE, FRONT, INSTALLATION .
  13. If 4WD, remove the front driveshaft heat shield.
  14. Remove the right and left side Catalytic converters. Refer to CONVERTER, CATALYTIC, REMOVAL .
  15. Remove the starter. Refer to 5.7L, STARTER, REMOVAL .
  16. Remove the transmission to engine structural cover.
    NOTE: The left front bolt (2) must be removed with the structural cover.
    GC0158334Courtesy of CHRYSLER GROUP, LLC
  17. Remove the transfer case. Refer to MP3010 TRANSFER CASE, REMOVAL or MP3015 TRANSFER CASE, REMOVAL AND INSTALLATION or MP3023 TRANSFER CASE, REMOVAL .
  18. Disconnect the 13-pin plug connector (1). Turn the connector counter-clockwise to release.
    GC0158361Courtesy of CHRYSLER GROUP, LLC
  19. Remove the wiring harness bracket (1) from the right side of the torque convertor housing.
    NOTE: Removing this bracket will gain clearance to the under body.
    GC0158335Courtesy of CHRYSLER GROUP, LLC
  20. Unclip the Jiffy Tite locking covers (1) and slide them back onto the transmission lines.
    GC0158317Courtesy of CHRYSLER GROUP, LLC
    GC0158322Courtesy of CHRYSLER GROUP, LLC
  21. Using (special tool #9546, Disconnect Tool) remove the trans cooler lines.
  22. Remove six torque converter bolts (1).
    NOTE: There are three sets 2 torque converter bolts located 120° apart from each other.
    GC0158383Courtesy of CHRYSLER GROUP, LLC
    GC0158324Courtesy of CHRYSLER GROUP, LLC
  23. Remove two engine to transmission bolts (3).
    NOTE:

    It may be necessary to support the rear of the engine during transmission removal. 

    GC0209148Courtesy of CHRYSLER GROUP, LLC
  24. Carefully work transmission (2) and torque converter assembly rearward off the engine (1) block dowels.
    NOTE: Be careful not to damage or bend the transmission oil cooler lines.
    GC0209254Courtesy of CHRYSLER GROUP, LLC
  25. Hold torque converter in place during transmission removal.
  26. Lower transmission and remove assembly from under the vehicle.
  27. To remove the torque converter, carefully slide the torque converter out of the transmission.
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