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Home >> Subaru >> 2019 >> WRX STI Limited >> Repair and Diagnosis >> Transmission >> Manual Trans >> Manual Transaxle & Differential (TY856) >> Manual Transmission Assembly >> Removal

Manual Transmission Assembly: Removal

  1. Disconnect the ground cable from battery.
  2. Remove the intercooler. Refer to INTAKE (INDUCTION) (STI)>INTERCOOLER>REMOVAL .
  3. Disconnect the following harness connectors, and then remove the intercooler stay RH No. 2.
    G13261769Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the secondary air combination valve. Refer to EMISSION CONTROL (AUX. EMISSION CONTROL DEVICES) (STI)>SECONDARY AIR COMBINATION VALVE>REMOVAL>SECONDARY AIR COMBINATION VALVE LH .
  5. Disconnect the transmission radio ground cord terminal.
    G10268971Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the starter assembly. Refer to STARTING/CHARGING SYSTEMS (STI)>STARTER>REMOVAL .
  7. Remove the operating cylinder.
    NOTE: Hang the removed operating cylinder with a piece of wire.
    G05342354Courtesy of SUBARU OF AMERICA, INC.
  8. Remove the return spring.
    G07682580Courtesy of SUBARU OF AMERICA, INC.
  9. Remove the pitching stopper. Refer to MANUAL TRANSMISSION AND DIFFERENTIAL (6MT) (TY85)>TRANSMISSION MOUNTING SYSTEM>REMOVAL>PITCHING STOPPER .
  10. Remove the pitching stopper bracket, clutch return spring bracket, and transmission radio ground cable.
  11. Set the ST.
    ST1 41099AA012 ENGINE SUPPORT BRACKET
    ST2 41099AA020 ENGINE SUPPORT
    G10268974Courtesy of SUBARU OF AMERICA, INC.
  12. Remove the clutch release lever shaft.
    1. Remove the plug using a hexagon wrench.
    2. Attach a 6 mm (0.24 in) bolt to the release lever shaft, and pull out the release lever shaft.
    3. Lift the release fork, and remove from the claw of the release bearing. Pull the release fork to the engine side, and make it so that it moves freely.
  13. Remove the center exhaust pipe. Refer to EXHAUST (STI)>CENTER EXHAUST PIPE>REMOVAL .
  14. Remove the bolts which hold upper side of transmission to engine.
    G05335715Courtesy of SUBARU OF AMERICA, INC.
  15. Remove the front wheels.
  16. Lift up the vehicle.
  17. Drain transmission gear oil completely. Refer to MANUAL TRANSMISSION AND DIFFERENTIAL (6MT) (TY85)>TRANSMISSION GEAR OIL>REPLACEMENT .
  18. Remove the center exhaust cover.
  19. Remove the propeller shaft. Refer to DRIVE SHAFT SYSTEM>PROPELLER SHAFT>REMOVAL .
  20. Remove the stabilizer link.
    G05342357Courtesy of SUBARU OF AMERICA, INC.
  21. Remove the ball joint of front arm from the housing.
    G05032352Courtesy of SUBARU OF AMERICA, INC.
  22. Remove the front drive shaft. Refer to DRIVE SHAFT SYSTEM>FRONT DRIVE SHAFT>REMOVAL .
  23. Place the transmission jack under the transmission.
    CAUTION: Always support the transmission case with a transmission jack.
    G10268978Courtesy of SUBARU OF AMERICA, INC.
  24. Remove the front crossmember and the rear crossmember.
    G10268979Courtesy of SUBARU OF AMERICA, INC.
  25. Move the transmission to the right side of the vehicle, and remove the joint COMPL, stay bolts and reverse check cable.
    NOTE: If the transmission is not moved aside, the joint COMPL and stay bolts may contact the body and cause damage.
    G13261779Courtesy of SUBARU OF AMERICA, INC.
  26. Tighten the turnbuckle of the ST to tilt the engine assembly towards the back.
    G05003243Courtesy of SUBARU OF AMERICA, INC.
  27. Remove the bolts and nuts holding the bottom of transmission to the engine, and remove the transmission assembly.
    NOTE:
    • During removal, be careful not to hit the transmission against the body when pulling towards the rear.
    • The clutch pipe and breather pipe may interfere with each other. Remove carefully.
    G10268982Courtesy of SUBARU OF AMERICA, INC.
  28. Remove the transmission cushion rubber.