LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2009 >> Outback Limited >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission 4AT >> Automatic Transmission Assembly >> Installation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Automatic Transmission Assembly: Installation

  1. Replace the differential side oil seal with a new part. Refer to REPLACEMENT , Differential Side Retainer Oil Seal.
    NOTE: When a new oil seal has been installed, replacement is not required.
  2. Install the rear cushion rubber to the transmission assembly.

    Tightening torque: 40 N.m (4.1 kgf-m, 29.5 ft-lb) 

  3. Attach the ST to the converter case.

    ST 498277200 STOPPER SET

    Fig 1: Identifying ST 498277200 Stopper Set On Converter Case
    G05002491Courtesy of SUBARU OF AMERICA, INC.
  4. Install the transmission onto the engine.
    1. Lift up the transmission gradually using transmission jack.
      Fig 2: Supporting Transmission And Torque Converter Unit On Jack
      G05955949Courtesy of SUBARU OF AMERICA, INC.
    2. Insert the engine side stud bolt into the transmission bolt hole.
    3. While raising the transmission jack gradually, turn the screw of engine support, then tilt the engine forward and connect.
  5. Install the transmission rear crossmember.

    Tightening torque: 

    T1:35 N.m (3.6 kgf-m, 25.8 ft-lb) 

    T2: 75 N.m (7.6 kgf-m, 55.3 ft-lb) 

    Fig 3: Identifying Transmission Rear Crossmember Bolts
    G05326558Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the transmission jack.
  7. Tighten the bolts and nuts which hold the lower side of transmission to the engine.

    Tightening torque: 50 N.m (5.1 kgf-m, 36.9 ft-lb) 

    Fig 4: Locating Bolts And Nuts Holding Lower Side Of Transmission To Engine
    G05002488Courtesy of SUBARU OF AMERICA, INC.
  8. Install the clutch housing cover bolts.
  9. Lower the vehicle.
  10. Connect the engine and transmission.
    1. Remove the ST from converter case.
      NOTE: When removing the ST, be careful not to drop it into converter case.
    2. Install the starter. Refer to INSTALLATION , Starter.
    3. Tighten the bolts which hold the upper side of the transmission to the engine.

      Tightening torque: 50 N.m (5.1 kgf-m, 36.9 ft-lb) 

      Fig 5: Locating Bolts Holding Upper Side Of Transmission To Engine
      G05002484Courtesy of SUBARU OF AMERICA, INC.
  11. Install the torque converter clutch assembly to the drive plate.
    CAUTION:
    • Be careful not to damage the mounting bolts.
    • Be careful not to drop bolts into the converter case.
    1. Tighten the bolts which hold the torque converter clutch assembly to the drive plate.
    2. Place the wrench on the crank pulley bolt, and remove all the bolts while rotating the crank pulley a little bit at a time.

      Tightening torque: 25 N.m (2.5 kgf-m, 18.4 ft-lb) 

      Fig 6: Removing Crank Pulley Bolt
      G05002480Courtesy of SUBARU OF AMERICA, INC.
    3. Fit the plug to service hole.
    4. Install the V-belt cover.
  12. Remove the ST.
    Fig 7: Identifying ST 41099AC000 Engine Support Assy
    G04994049Courtesy of SUBARU OF AMERICA, INC.
  13. Install the engine harness bracket.

    Tightening torque: 

    16 N.m (1.6 kgf-m, 11.8 ft-lb) 

    Fig 8: Locating Engine Harness Bracket Bolts
    G05661655Courtesy of SUBARU OF AMERICA, INC.
  14. Install the harness connector to engine harness bracket, then connect the harness.
  15. Install the pitching stopper bracket.

    Tightening torque: 41 N.m (4.2 kgf-m, 30.2 ft-lb) 

    Fig 9: Identifying Pitching Stopper Bracket And Mounting Bolts
    G06337157Courtesy of SUBARU OF AMERICA, INC.
  16. Install the throttle body. Refer to INSTALLATION , Throttle Body.
  17. Install the pitching stopper.

    Tightening torque: 

    T1: 50 N.m (5.1 kgf-m, 36.9 ft-lb) 

    T2: 58 N.m (5.9 kgf-m, 42.8 ft-lb) 

    Fig 10: Identifying Pitching Stopper Mounting Nuts
    G05668273Courtesy of SUBARU OF AMERICA, INC.
  18. Lift up the vehicle.
  19. Replace the circlip of the front drive shaft with a new part.
  20. Apply grease to the oil seal lip.
  21. Attach the ST to side retainer.

    ST 28399SA010 OIL SEAL PROTECTOR

    Fig 11: Identifying ST 28399SA010 Oil Seal Protector
    G05002499Courtesy of SUBARU OF AMERICA, INC.
  22. Align and insert the spline of the front drive shaft to the splines of the differential bevel gear, and remove the ST.
  23. Insert the front drive shaft into the transmission securely by pressing the front housing from the outside.
    Fig 12: Identifying Front Housing
    G05002500Courtesy of SUBARU OF AMERICA, INC.
  24. Install the ball joint into the housing.
  25. Tighten the attachment bolts.

    Tightening torque: 50 N.m (5.1 kgf-m. 36.9 ft-lb) 

    Fig 13: Locating Attachment Bolt
    G05021794Courtesy of SUBARU OF AMERICA, INC.
  26. Install the stabilizer to the front crossmember.
    NOTE:
    • Install the bushing (on front crossmember side) while aligning it with the paint mark on the stabilizer.
    • Make sure the bushing and stabilizer are marked with the same identification colors (paint mark) when installing.
      Fig 14: Identifying Identification Mark On Stabilizer And Bushing Identification Color
      G06337162Courtesy of SUBARU OF AMERICA, INC.
  27. Always tighten the rubber bushing locations with wheels in full contact with the ground and the vehicle at curb weight.

    Tightening torque: 25 N.m (2.5 kgf-m, 18.4 ft-lb) 

  28. Install the shift select cable onto select lever. Refer to INSTALLATION , Select Cable.
  29. Install the oil charge pipe, and connect the ATF cooler hoses to the pipe.
    Fig 15: Identifying ATF Cooler Hoses
    G05955944Courtesy of SUBARU OF AMERICA, INC.
  30. Install the propeller shaft. Refer to INSTALLATION , Propeller Shaft.
  31. Install the heat shield cover.
    Fig 16: Identifying Heat Shield Cover
    G05019661Courtesy of SUBARU OF AMERICA, INC.
  32. Install the rear exhaust pipe and muffler. Refer to INSTALLATION , Rear Exhaust Pipe. Refer to INSTALLATION , Muffler.
  33. Install the front and center exhaust pipe. Refer to INSTALLATION , Front Exhaust Pipe. Refer to INSTALLATION , Center Exhaust Pipe.
  34. Install the under cover.
  35. Lower the vehicle.
  36. Install the ATF level gauge.
    Fig 17: Identifying ATF Level Gauge
    G05021787Courtesy of SUBARU OF AMERICA, INC.
  37. Connect the following connectors and terminals.
    Fig 18: Identifying Transmission Harness Connectors And Transmission Ground Terminal
    G06337166Courtesy of SUBARU OF AMERICA, INC.
  38. Install the air intake chamber stay.

    Tightening torque: 16 N.m (1.6 kgf-m, 11.8 ft-lb) 

  39. Install the air intake chamber and intake boot.

    Refer to INSTALLATION , Air Intake Chamber.

  40. Connect the ground cable to battery.
  41. Pour in the ATF using the oil charge pipe. Refer to AUTOMATIC TRANSMISSION FLUID .
  42. Check the differential gear oil level. Refer to DIFFERENTIAL GEAR OIL .
  43. Check the select lever operation. Refer to INSPECTION , Inhibitor Switch.
  44. Bleed the air of control valve. Refer to AIR BLEEDING OF CONTROL VALVE .
  45. Check the ATF level. Refer to INSPECTION , Automatic Transmission Fluid.
  46. Execute the learning control promotion. Refer to FACILITATION OF LEARNING CONTROL , OPERATION, Subaru Select Monitor.
  47. Perform the road test. Refer to ROAD TEST .