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AT Main Case: Installation

  1. Apply ATF to a new seal ring.
  2. Install the thrust bearing and a new seal ring to the drum support.
    Fig 1: Identifying Thrust Bearing And Seal Ring
    G06343062Courtesy of SUBARU OF AMERICA, INC.
  3. Install the reverse brake piston.
    NOTE: Apply ATF onto the piston sliding surface.

    ST1 18762AA000 COMPRESSOR SPECIAL TOOL

    ST2 18765AA000 COMPRESSOR SUPPORT

    ST3 18763AA000 COMPRESSOR SHAFT

  4. Install the return spring.
    Fig 2: Removing/Installing Return Spring
    G05022404Courtesy of SUBARU OF AMERICA, INC.
  5. Install the spring retainer and snap ring.

    ST1 18762AA000 COMPRESSOR SPECIAL TOOL

    ST2 18765AA000 COMPRESSOR SUPPORT

    ST3 18763AA000 COMPRESSOR SHAFT

    Fig 3: Identifying Reverse Brake Spring Retainer And Snap Ring
    G05022402Courtesy of SUBARU OF AMERICA, INC.
  6. Install the dish plate.
    NOTE: When installing, make sure that the identification mark is facing the front side of transmission.
  7. Install the drive plate and driven plate.
    NOTE: When the reverse brake is disassembled, use a new drive plate and driven plate set.
  8. Install the leaf spring.
    Fig 4: Identifying Leaf Spring And Drive Plate
    G06343065Courtesy of SUBARU OF AMERICA, INC.
  9. Install the retaining plate.
  10. Install the snap ring of the reverse brake.
    Fig 5: Identifying Snap Ring Of Reverse Brake
    G05022400Courtesy of SUBARU OF AMERICA, INC.
  11. Apply compressed air intermittently to check for operation.
    Fig 6: Applying Compressed Air
    G05022405Courtesy of SUBARU OF AMERICA, INC.
  12. Check the piston stroke.
    1. Read the value of the drive plate compression amount described in the wave clutch set of repair parts.
      NOTE: This value is "A".
    2. Measure the clearance "B" between the retaining plate and snap ring using a thickness gauge.
      NOTE:
      • Set shims of the same thickness on both sides so that the retaining plate will not tilt.
      • Do not push the shim down with force to a point where the waves on the drive plate will become crushed.
        Fig 7: Applying Compressed Air
        G00514659Courtesy of SUBARU OF AMERICA, INC.
    3. Select and install a retaining plate so that the value calculated from the dimension A and B is within the standard.

      T = A + B

      T: Piston stroke

      A: Amount of drive plate compression described on the repair parts

      B: Clearance between retaining plate and snap ring.

      Initial standard: 

      2.0 - 2.4 mm (0.08 - 0.09 in) 

      THICKNESS SPECIFICATION CHART

      Retainer plate
      Part No. Thickness mm (in)
      31567AB100 4.2 (0.165)
      31567AB170 4.4 (0.173)
      31567AB180 4.6 (0.181)
      31567AB190 4.8 (0.189)
      31567AB200 5.0 (0.197)
  13. Install the direct clutch assembly.
    Fig 8: Removing/Installing Direct Clutch Assembly
    G05022399Courtesy of SUBARU OF AMERICA, INC.
  14. Install the high & low reverse clutch assembly.
    Fig 9: Removing/Installing High And Low Reverse Clutch Assembly
    G05022398Courtesy of SUBARU OF AMERICA, INC.
  15. Install the thrust needle bearing of the high & low reverse clutch.
    Fig 10: Identifying High And Low Reverse Clutch Of Thrust Needle Bearing
    G05022397Courtesy of SUBARU OF AMERICA, INC.
  16. Install the middle & rear sun gear assembly.
    Fig 11: Removing Middle And Rear Sun Gear Assembly
    G05022396Courtesy of SUBARU OF AMERICA, INC.
  17. Install the rear carrier assembly.
    Fig 12: Identifying Rear Carrier Assembly
    G05022395Courtesy of SUBARU OF AMERICA, INC.
  18. Install the middle carrier assembly.
    Fig 13: Identifying Middle Carrier Assembly
    G05022394Courtesy of SUBARU OF AMERICA, INC.
  19. Install the thrust needle bearing of middle carrier assembly.
    Fig 14: Identifying Needle Bearing
    G05022393Courtesy of SUBARU OF AMERICA, INC.
  20. Measure the total end play, and select the bearing. Refer to ADJUSTMENT , AT Main Case.
  21. Install the impact clutch pack assembly to oil pump cover.
    Fig 15: Identifying Impact Clutch Pack Assembly To Oil Pump Cover
    G06343075Courtesy of SUBARU OF AMERICA, INC.
  22. Turn the transmission sideways.
  23. Install the oil pump cover.
    1. Apply ATF to the O-ring of input clutch shaft.
    2. Install the oil pump cover to AT main case while supporting the input clutch shaft and oil pump housing with your hand.
      Fig 16: Identifying Oil Pump Cover
      G05022392Courtesy of SUBARU OF AMERICA, INC.
    3. Make sure the rear end of drive pinion shaft is engaged to the spine of reduction and driven gear.
      Fig 17: Identifying Oil Pump Cover
      G00514660Courtesy of SUBARU OF AMERICA, INC.
    4. Protect the input clutch shaft with a cloth, and rotate to engage the spline of the input clutch and rear carrier using pliers.
      NOTE: Work with pressing the oil pump cover.
      Fig 18: Identifying Oil Pump Cover
      G00514661Courtesy of SUBARU OF AMERICA, INC.
    5. Combine the oil pump cover with transmission main case.

      Tightening torque: 

      41 N.m (4.2 kgf-m, 30.2 ft-lb) 

    Fig 19: Identifying Oil Pump Cover
    G00514662Courtesy of SUBARU OF AMERICA, INC.
  24. Install the center differential carrier. Refer to INSTALLATION , Center Differential Carrier.
  25. Install the reduction driven gear. Refer to INSTALLATION , Reduction Driven Gear.
  26. Install the extension case. Refer to INSTALLATION , Extension Case.
  27. Install the control valve body. Refer to INSTALLATION , Control Valve Body.
  28. Install the converter case assembly to the transmission case assembly. Refer to INSTALLATION , Converter Case.
  29. Install the ATF cooler pipe. Refer to INSTALLATION , ATF Cooler Pipe and Hose.
  30. Install the torque converter assembly. Refer to INSTALLATION , Torque Converter Assembly.
  31. Install the transmission assembly to the vehicle. Refer to INSTALLATION , Automatic Transmission Assembly.
  32. Perform Clear Memory 2 operation. Refer to CLEAR MEMORY MODE , OPERATION, Subaru Select Monitor.
  33. Perform the diagnosis again. Refer to GENERAL DESCRIPTION , Learning Control.
  34. Perform the inspection at the end of repair work, and make sure there is no faulty as below;
    • Excessive shift shock
    • Oil leakage from the transmission body, etc.
    • Occurrence of noise caused by interference etc.
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