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AT Main Case: Installation

  1. Apply ATF to the new seal ring.
  2. Install the thrust bearing and new seal ring to the drum support.
    Fig 1: Identifying Thrust Bearing And Seal Ring
    G08545226Courtesy 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: Removing/Installing Reverse Brake Spring Retainer 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 rear 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: Installing Leaf Spring
    G08545229Courtesy of SUBARU OF AMERICA, INC.
  9. Install the retaining plate.
  10. Install the snap ring of the reverse brake.
    Fig 5: Identifying Reverse Brake Snap Ring
    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. Check the amount of drive plate compression "A" described in the wave clutch set of repair parts.
      Fig 7: Identifying Drive Plate Compression Length
      G08545232Courtesy of SUBARU OF AMERICA, INC.
    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 8: Measuring Clearance Between Retaining Plate And Snap Ring
      G08545233Courtesy of SUBARU OF AMERICA, INC.
    3. Select and install a retaining plate so that the pin stroke calculated from the dimensions A and B is within the standard.

      T = A + B

      T: Piston stroke

      A: Amount of drive plate compression

      B: Clearance between retaining plate and snap ring

    Initial standard: 

    2.0 - 2.4 mm (0.08 - 0.09 in) 

    Retaining 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 9: Removing/Installing Direct Clutch Assembly
    G05022399Courtesy of SUBARU OF AMERICA, INC.
  14. Install the high & low reverse clutch assembly.
    Fig 10: 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 11: Identifying Thrust Needle Bearing Of High And Low Reverse Clutch
    G05022397Courtesy of SUBARU OF AMERICA, INC.
  16. Install the middle & rear sun gear assembly.
    Fig 12: Removing/Installing Middle And Rear Sun Gear Assembly
    G05022396Courtesy of SUBARU OF AMERICA, INC.
  17. Install the rear carrier assembly.
    Fig 13: Removing/Installing Rear Carrier Assembly
    G05022395Courtesy of SUBARU OF AMERICA, INC.
  18. Install the middle carrier assembly.
    Fig 14: Removing/Installing Middle Carrier Assembly
    G05022394Courtesy of SUBARU OF AMERICA, INC.
  19. Install the thrust needle bearing of middle carrier assembly.
    Fig 15: Identifying Middle Carrier Assembly Needle Bearing
    G05022393Courtesy of SUBARU OF AMERICA, INC.
  20. Measure the total end play, and select the bearing. < Ref. to ADJUSTMENT , AT Main Case. >
  21. Install the input clutch pack assembly to oil pump cover.
    Fig 16: Identifying Input Clutch Pack Assembly And Front Sun Gear Assembly
    G08545241Courtesy 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.
      NOTE: Use a new gasket.
      Fig 17: Removing/Installing Oil Pump Cover
      G05022392Courtesy of SUBARU OF AMERICA, INC.
    3. 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: Rotating Spline Of Input Clutch And Rear Carrier Using Pliers
      G08545243Courtesy of SUBARU OF AMERICA, INC.
    4. 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 Mounting Bolts
      G05022338Courtesy of SUBARU OF AMERICA, INC.
  24. Install the center differential carrier. < Ref. to INSTALLATION , Center Differential Carrier. >
  25. Install the reduction driven gear. < Ref. to INSTALLATION , Reduction Driven Gear. >
  26. Install the extension case. < Ref. to INSTALLATION , Extension Case. >
  27. Install the control valve body. < Ref. to INSTALLATION , Control Valve Body. >
  28. Install the converter case assembly to the transmission case assembly. < Ref. to INSTALLATION , Converter Case. >
  29. Install the ATF AT pipe. < Ref. to INSTALLATION , ATF Cooler Pipe and Hose. >
  30. Install the torque converter assembly. < Ref. to INSTALLATION , Torque Converter Assembly. >
  31. Install the transmission assembly to the vehicle. < Ref. to INSTALLATION , Automatic Transmission Assembly. >
  32. Perform Clear Memory 2 operation. < Ref. to CLEAR MEMORY MODE , OPERATION, Subaru Select Monitor. >
  33. Perform the diagnosis again. < Ref. to PROCEDURE , 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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