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Disassembly And Assembly: Disassembly

The 948TE automatic transmission can be overhauled if the vehicle is beyond its warranty coverage. Verify that the vehicle is no longer covered by warranty, and that applicable parts for overhaul are available before beginning this procedure. A clean work area is necessary to assure a properly functioning transmission after the overhaul procedures are completed. Special tools have been developed and are required to disassemble this transmission. Acquire all of the special tools before starting this procedure.

WARNING:

Always wear safety glasses when cleaning, disassembling and assembling the transmission/transaxle. Contents of the transmission/transaxle can become projectiles (e.g., springs, snap-rings, as well as metal and other debris). Failure to wear safety glasses may result in severe personal injury.

CAUTION:

Tag all snap rings, thrust washers, washers, shims, spacers and thrust bearings, etc. during disassembly for quick identification and assembly. Failure to follow these instructions will cause damage and transmission failure.

  1. Before disassembling the transmission, wash the transmission with a suitable solvent and a siphon pressure washer to remove oily grime and loose dirt. Place the transmission on a clean work surface with ample fluid drainage or absorbency.
  2. Check input shaft end play prior to disassembling the transmission. Refer to STANDARD PROCEDURES .
    GC0159610Courtesy of CHRYSLER GROUP, LLC
  3. Remove the clip (2) holding the transmission solenoid connector (1) in the valve body cover pan.
    GC0160006Courtesy of CHRYSLER GROUP, LLC
  4. Remove the valve body cover pan bolts (1) and the valve body cover pan.
    GC0159929Courtesy of CHRYSLER GROUP, LLC
  5. Remove the larger bolts (1) holding the valve body to the transmission housing.
  6. Using a suitable prying tool, pry the valve body away from the fluid transfer tubes.
    GC0160089Courtesy of CHRYSLER GROUP, LLC
  7. Turn the valve body over to gain access to wire harness connectors.
  8. Release the lock on the fluid pressure transducer wire harness connector (2) and separate the wire harness connector (2) from the transmission fluid pressure sensor (1).
    GC0159917Courtesy of CHRYSLER GROUP, LLC
  9. Remove the bolts (1) holding the transmission solenoid wire harness connector to the valve body and solenoids.
  10. Using a suitable prying tool, separate the transmission solenoid wire harness connector (2) from the solenoids.
  11. Separate the valve body from the transmission.
    NOTE:

    If the valve body is to be reused without disassembling it, store the valve body in a clean area until it is installed.

    GC0159858Courtesy of CHRYSLER GROUP, LLC
  12. Remove the Transmission Range Sensor (TRS) screw (1).
    GC0159550Courtesy of CHRYSLER GROUP, LLC
  13. Separate the TRS (1) from the transmission with the wire harness connected.
    GC0159900Courtesy of CHRYSLER GROUP, LLC
  14. Remove the speed sensor screw (1).
    GC0159478Courtesy of CHRYSLER GROUP, LLC
  15. Separate the speed sensor (1) from the transmission with the wire harness connected.
    GC0160131Courtesy of CHRYSLER GROUP, LLC
  16. Using suitable pliers, remove the fluid transfer tubes (1) from the transmission.
    GC0159940Courtesy of CHRYSLER GROUP, LLC
  17. From around the perimeter of the transmission, remove the bellhousing bolts (1) holding the bellhousing to the transmission housing.
    GC0159303Courtesy of CHRYSLER GROUP, LLC
  18. Remove the bellhousing bolts (1) holding the bellhousing to the output gear support.
    GC0159912Courtesy of CHRYSLER GROUP, LLC
  19. Using wooden blocks to stabilize the transmission on the work surface, position the transmission on the bench with the bellhousing facing upward.
  20. Using a suitable pry-bar in the pry point locations, pry upward to dislodge the bellhousing from the transmission housing.
  21. Lift the bellhousing (1) upward and separate the assembly from the transmission housing (2).
    GC0159183Courtesy of CHRYSLER GROUP, LLC
  22. Remove the seal (1) from the port in the transmission housing.
    GC0160090Courtesy of CHRYSLER GROUP, LLC
  23. Separate the gasket (1) from the sealing surface of the transmission housing (2).
    GC0159469Courtesy of CHRYSLER GROUP, LLC
  24. Remove the differential assembly (1) from the transmission housing.
    GC0159419Courtesy of CHRYSLER GROUP, LLC
  25. Separate the E-clutch drum (1) from the E-clutch assembly (2).
    GC0159172Courtesy of CHRYSLER GROUP, LLC
  26. Separate the thrust bearing (1) from the E-clutch assembly.
    GC0159422Courtesy of CHRYSLER GROUP, LLC
  27. Separate the E-clutch hub (1) from the output gear support (2).
    GC0159323Courtesy of CHRYSLER GROUP, LLC
  28. Separate the output gear support (1) from the gear 4 planetary pinion carrier (2).
    GC0173249Courtesy of CHRYSLER GROUP, LLC
  29. Remove the transfer gear (1) from the transmission housing.
    GC0173302Courtesy of CHRYSLER GROUP, LLC
  30. Separate the roller type thrust bearing (1) from the sun gear 3 and 4 and Dog Clutch-F (2).
    GC0173273Courtesy of CHRYSLER GROUP, LLC
  31. Separate the sun gear 3 and 4 and Dog Clutch-F (1) from the gear 4 planetary pinion carrier.
    GC0173305Courtesy of CHRYSLER GROUP, LLC
  32. Separate the gear 4 planetary pinion carrier (1) from the annulus gear 4.
    GC0173317Courtesy of CHRYSLER GROUP, LLC
  33. Separate the annulus gear 4 (1) from the annulus gear 3 (2).
    GC0159314Courtesy of CHRYSLER GROUP, LLC
  34. Compress and release the park pawl (2) return spring (3).
  35. Pull the reaction pin (1) from the park pawl (2).
  36. Separate the park pawl (2) from the park rod guide.
    NOTE:

    The park rod guide (1) can be removed without removing the park rod.

    GC0159210Courtesy of CHRYSLER GROUP, LLC
  37. Remove the park rod guide bolt (2) and the park rod guide (1).
    GC0159364Courtesy of CHRYSLER GROUP, LLC
  38. Using the Press Puller (special tool #C-293-PA, Puller, Press) (1), Adapter Blocks (special tool #9738, Blocks, Adapter) (3) and a suitable socket as a plug (2), remove the transfer gear bearing cone from the transmission housing.
    GC0173313Courtesy of CHRYSLER GROUP, LLC
  39. Separate the trust bearing (1) from the annulus gear 1 planetary hub (2).
    GC0173306Courtesy of CHRYSLER GROUP, LLC
  40. Separate the annulus gear 1 planetary hub (1) from the carrier gear 1 and 2 (2).
    GC0160166Courtesy of CHRYSLER GROUP, LLC
  41. Separate the thrust bearing (1) from under the annulus gear 1 planetary hub (2).
    GC0199715Courtesy of CHRYSLER GROUP, LLC
  42. Remove the snap-ring (1) for the annulus gear 3.
    GC0173324Courtesy of CHRYSLER GROUP, LLC
  43. Separate the annulus gear 3 (1) from the carrier gear 1 and 2.
    GC0173339Courtesy of CHRYSLER GROUP, LLC
  44. Remove the O-ring seal (1) from the carrier gear 1 and 2.
  45. Separate the carrier gear 1 and 2, annulus gear 2, D-clutch hub and input shaft assembly.
    GC0173294Courtesy of CHRYSLER GROUP, LLC
  46. Position the transmission housing on a suitable arbor press using wooden blocks for support.
  47. Using Pressing Tool (special tool #8901A, Pressing Tool) (1) (with pressure scale removed) and Pressing Tool Adapter (special tool #10428, Adapter, Pressing Tool), compress the belleville spring to gain access to the snap-ring holding the D-clutch piston retainer (2) into the transmission housing.
    GC0159759Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    The O-ring seal on the D-clutch piston retainer will hang up in the snap-ring groove during removal and will need to be pried out of the transmission housing.

  48. Using a suitable pry-bar (1), vise-grip pliers (2), and a brass drift (3) coupled together, pry the D-clutch piston retainer (4) upward and out of the transmission housing.
    GC0159886Courtesy of CHRYSLER GROUP, LLC
  49. Remove the D-clutch piston (2) from the retainer (1).
    GC0159819Courtesy of CHRYSLER GROUP, LLC
  50. Remove the inner (1) and outer (2) lip seals from the D-clutch piston.
    GC0173322Courtesy of CHRYSLER GROUP, LLC
  51. Remove the O-ring seal (2) from the D-clutch piston retainer (1).
    GC0159704Courtesy of CHRYSLER GROUP, LLC
  52. Separate the belleville spring (1) from the transmission housing (2).
    GC0159867Courtesy of CHRYSLER GROUP, LLC
  53. Separate the annulus gear 2, D and C-clutch hub and input shaft assembly (1) from the transmission housing.
  54. Remove the annulus gear 2, D and C-clutch hub from the input shaft and B-clutch.
    GC0159707Courtesy of CHRYSLER GROUP, LLC
  55. Remove the seal-rings (1) from the lands (2) on the input shaft (3).
    GC0159592Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Dog clutch A is permanently attached to the input shaft and cannot be disassembled.

  56. Using suitable snap-ring pliers (3), remove the snap-ring (2) holding the input shaft to the B-clutch (1) hub.
  57. Separate the input shaft/dog clutch A from the B-clutch (1) hub.
    GC0173321Courtesy of CHRYSLER GROUP, LLC
  58. Using a suitable tool (2), gently pry the thrust washer (1) from the C-clutch hub (3).
    GC0159593Courtesy of CHRYSLER GROUP, LLC
  59. Place the annulus gear 2, D and C-clutch hub (1) on tool Differential End Plug (special tool #9611, Plug, Differential End) (2) to hold the sun gear in position.
    GC0159807Courtesy of CHRYSLER GROUP, LLC
  60. Using a suitable snap-ring pliers (1), remove the snap-ring (2) holding the sun gear 1 to the annulus gear 2, D and C-clutch hub.
    GC0176901Courtesy of CHRYSLER GROUP, LLC
  61. Turn the annulus gear 2 (2), D and C-clutch hub (3) over and remove sun gear 1 (1).
    GC0159432Courtesy of CHRYSLER GROUP, LLC
  62. Separate the annulus gear 2, D-clutch hub (1) from the C-clutch hub (2).
    GC0159946Courtesy of CHRYSLER GROUP, LLC
  63. Separate the thrust bearing (1) from the C-clutch hub (2).
    GC0159971Courtesy of CHRYSLER GROUP, LLC
  64. Remove the thrust bearing (1) from the input shaft rear support.
    GC0160163Courtesy of CHRYSLER GROUP, LLC
  65. Remove the input shaft rear support selective thrust washer (1).
    GC0159869Courtesy of CHRYSLER GROUP, LLC
  66. Separate the D-clutch friction discs and steel plates (1) from the transmission housing.
    GC0159838Courtesy of CHRYSLER GROUP, LLC
  67. Using two suitable screw drivers (2) and (3), lift the snap-ring (1) and pry it inward with the screwdriver (3) and out of from the groove in the transmission housing.
    GC0159950Courtesy of CHRYSLER GROUP, LLC
  68. Separate the C-clutch friction discs and steel plates (1) from the transmission housing.
    GC0159557Courtesy of CHRYSLER GROUP, LLC
  69. Place the Spring Compressor (special tool #10504, Compressor, Spring) (1) over the C-clutch belleville spring at the bottom of the transmission housing.
    GC0159393Courtesy of CHRYSLER GROUP, LLC
  70. Place tool Bearing Installer (special tool #8228, Installer, Bearing) (3) over the input shaft support (tool 8901 with 10428 legs can also be used), compress the belleville spring to gain access to the stepped snap-ring (1).
    GC0159695Courtesy of CHRYSLER GROUP, LLC
  71. Using a suitable screw driver, remove the snap-ring (1) holding the C-clutch belleville spring in the transmission housing.
    GC0159269Courtesy of CHRYSLER GROUP, LLC
  72. Separate the C-clutch belleville spring (1) from the C-clutch piston (2).
    GC0160164Courtesy of CHRYSLER GROUP, LLC
  73. Using suitable pliers (2), remove the C-clutch piston (1) from the transmission housing.
    GC0159878Courtesy of CHRYSLER GROUP, LLC
  74. If overhaul is being performed, remove inner (1) and outer (2) seals from the C-clutch piston (3).
    GC0159599Courtesy of CHRYSLER GROUP, LLC
  75. Using a suitable hook tool, remove the inner seal-rings (1) from the input shaft support.
    GC0160098Courtesy of CHRYSLER GROUP, LLC
  76. Using a suitable hook tool, remove the outer seal-rings (1) from the input shaft support.
    GC0159821Courtesy of CHRYSLER GROUP, LLC
  77. Using a suitable hook tool, remove the split roller bearing (1) from the input shaft support.
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