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Home >> Subaru >> 2008 >> Outback Base, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (4AT) >> AT Main Case >> Removal
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AT Main Case: Removal

  1. Remove the transmission assembly from vehicle body. < Ref. to REMOVAL , Automatic Transmission Assembly. >
  2. Pull out the torque converter assembly. < Ref. to REMOVAL , Torque Converter Assembly. >
  3. Remove the input shaft.
    Fig 1: Identifying Input Shaft
    G05002575Courtesy of SUBARU OF AMERICA, INC.
  4. Lift up the lever on the rear side of transmission harness connector, and then disconnect it from the stay.
  5. Disconnect the inhibitor switch connector from the stay.
  6. Disconnect the air breather hose.
  7. Remove the oil charge pipe. < Ref. to REMOVAL , Oil Charge Pipe. >
  8. Remove the ATF inlet and outlet pipes. < Ref. to REMOVAL , ATF Cooler Pipe and Hose. >
  9. Separate the converter case from the transmission case. < Ref. to REMOVAL , Converter Case. >
  10. Remove the oil pump housing. < Ref. to REMOVAL , Oil Pump Housing. >
  11. Take out the high clutch, thrust needle bearing and reverse clutch assembly.
    Fig 2: Identifying Thrust Needle Bearing And High Clutch Hub
    G05668508Courtesy of SUBARU OF AMERICA, INC.
  12. Take out the high clutch hub and thrust bearing.
    Fig 3: Identifying Thrust Needle Bearing And Front Sun Gear
    G05668509Courtesy of SUBARU OF AMERICA, INC.
  13. Take out the front sun gear and thrust needle bearing.
    Fig 4: Identifying Front Sun Gear And Thrust Needle Bearing
    G05668510Courtesy of SUBARU OF AMERICA, INC.
  14. Pull out while being careful not to break the leaf spring of the 2-4 brake.
    Fig 5: Identifying Retaining Plate And Leaf Spring
    G05668511Courtesy of SUBARU OF AMERICA, INC.
  15. Remove the snap ring and thrust needle bearing.
    Fig 6: Identifying Snap Ring And Thrust Needle Bearing
    G05668512Courtesy of SUBARU OF AMERICA, INC.
  16. Take out the retaining plate, drive plate and driven plate of the 2-4 brake.
    Fig 7: Identifying Retaining Plate, Drive Plate And Driven Plate
    G05002741Courtesy of SUBARU OF AMERICA, INC.
  17. Take out the thrust needle bearing, planetary gear assembly and low clutch assembly.
    Fig 8: Installing Thrust Needle Bearing, Planetary Gear Assembly And Low Clutch Assembly
    G05002742Courtesy of SUBARU OF AMERICA, INC.
  18. Remove the 2-4 brake seal.
    Fig 9: Identifying 2-4 Brake Seal
    G05002776Courtesy of SUBARU OF AMERICA, INC.
  19. Remove the snap ring.
    Fig 10: Identifying Snap Ring And 2-4 Brake Seal
    G05668516Courtesy of SUBARU OF AMERICA, INC.
  20. Take out the 2-4 brake spring retainer.
    Fig 11: Installing 2-4 Brake Spring Retainer
    G05002745Courtesy of SUBARU OF AMERICA, INC.
  21. Remove the 2-4 brake piston and 2-4 brake piston retainer while taking care not to damage them.
    Fig 12: Identifying 2-4 Brake Piston And 2-4 Brake Piston Retainer
    G05668518Courtesy of SUBARU OF AMERICA, INC.
  22. Pull out the leaf spring of the low & reverse brake while being careful not to bend it.
    Fig 13: Identifying Leaf Spring
    G05668519Courtesy of SUBARU OF AMERICA, INC.
  23. Remove the snap ring.
    Fig 14: Identifying Snap Ring
    G05668520Courtesy of SUBARU OF AMERICA, INC.
  24. Take out the retaining plate, drive plate, driven plate and dish plate of the low & reverse brake.
    Fig 15: Identifying Retaining Plate, Drive Plate, Driven Plate And Dish Plate
    G05002749Courtesy of SUBARU OF AMERICA, INC.
  25. Turn the transmission case upside down, and then take out the socket bolts while holding the one-way clutch inner race by hand.
    Fig 16: Turning Transmission Case
    G05002750Courtesy of SUBARU OF AMERICA, INC.
  26. Remove the spring retainer.
    Fig 17: Removing Spring Retainer
    G05002751Courtesy of SUBARU OF AMERICA, INC.
  27. Take out the return spring.
    Fig 18: Identifying Return Spring
    G05002752Courtesy of SUBARU OF AMERICA, INC.
  28. Apply compressed air.
    Fig 19: Applying Compressed Air
    G05002753Courtesy of SUBARU OF AMERICA, INC.
  29. Take out the low & reverse brake piston.
    Fig 20: Identifying Low And Reverse Brake Piston
    G05002754Courtesy of SUBARU OF AMERICA, INC.