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Manual Transmission Assembly: Installation

WARNING: This page is about a different variant/trim than selected.
  1. Replace the differential side retainer oil seal. <Ref. to REPLACEMENT , Differential Side Retainer Oil Seal.>
    NOTE:
    • Be sure to replace the differential side retainer oil seal after removing the front drive shaft.
    • When a new oil seal has been installed, replacement is not required.

    ST 18675AA000 DIFFERENTIAL SIDE OIL SEAL INSTALLER

    Fig 1: Installing Differential Side Oil Seal
    G05002972Courtesy of SUBARU OF AMERICA, INC.
  2. Tap the transmission hanger in the rear side of transmission with a rubber hammer to bend it until full contact is obtained.
    CAUTION: Do not apply excessive load or impact to the transmission case.
    Fig 2: Tapping Transmission Hanger In Rear Side Of Transmission With Rubber Hammer
    G09482518Courtesy of SUBARU OF AMERICA, INC.
  3. Install the transmission cushion rubber to the transmission, and tighten the bolt (A).
  4. Install the transmission cushion rubber to the center crossmember, and temporarily tighten the nut (B).

    Tightening torque: 

    Bolt (A) 

    35 N.m (3.6 kgf-m, 25.8 ft-lb) 

    Fig 3: Identifying Transmission Cushion Rubber, Center Crossmember Bolt And Nut
    G10268629Courtesy of SUBARU OF AMERICA, INC.
  5. Install the transmission onto the engine.
    1. Lift up the transmission gradually using a transmission jack.
    2. Engage at the spline section.
      NOTE: Be careful not to hit the main shaft against the clutch cover.
  6. While raising the transmission jack, loosen the turnbuckle of the ST, and set the engine unit to the original position.
  7. Tighten the mounting bolts for front crossmember and rear crossmember.
  8. Tighten the transmission cushion rubber mounting nut.

    Tightening torque: 

    T1: 70 N.m (7.1 kgf-m, 51.6 ft-lb) 

    T2: 140 N.m (14.3 kgf-m, 103.3 ft-lb) 

    T3: 35 N.m (3.6 kgf-m, 25.8 ft-lb) 

    Fig 4: Identifying Front/Rear Crossmember Mounting Bolts
    G10268630Courtesy of SUBARU OF AMERICA, INC.
  9. Take out the transmission jack.
  10. 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 5: Locating Lower Side Transmission Gasket Bolts
    G05002964Courtesy of SUBARU OF AMERICA, INC.
  11. Install the ST to the transmission, and then install the front drive shaft.

    ST 28399SA010 OIL SEAL PROTECTOR

    Fig 6: Installing Front Drive Shaft
    G08318906Courtesy of SUBARU OF AMERICA, INC.
  12. Insert the front arm ball joint and tighten the mounting bolt.

    Tightening torque: 

    50 N.m (5.1 kgf-m, 36.9 ft-lb) 

    Fig 7: Inserting Front Arm Ball Joint And Mounting Bolt
    G10268633Courtesy of SUBARU OF AMERICA, INC.
  13. Install the stabilizer link.

    Tightening torque: 

    60 N.m (6.1 kgf-m, 44.3 ft-lb) 

    Fig 8: Locating Stabilizer Link Nuts
    G10268621Courtesy of SUBARU OF AMERICA, INC.
  14. Install the MT gear shift cable and MT gear select cable to MT gear shift lever. <Ref. to EXCEPT FOR STI MODEL , INSTALLATION, MT Gear Shift Lever.>
    CAUTION:
    • Do not bend MT gear shift cable and MT gear select cable at a sharp angle.
    • If the MT gear select cable is removed from the selector lever COMPL on the transmission side, replace with new MT gear select cable.
  15. Install the hanger bracket.

    Tightening torque: 

    23 N.m (2.3 kgf-m, 17.0 ft-lb) 

    Fig 9: Identifying Hanger Bracket
    G10268619Courtesy of SUBARU OF AMERICA, INC.
  16. Install the propeller shaft. <Ref. to INSTALLATION , Propeller Shaft.>
  17. Install the center exhaust cover.

    Tightening torque: 

    18 N.m (1.8 kgf-m, 13.3 ft-lb) 

  18. Install the center exhaust pipe (rear). <Ref. to INSTALLATION , Center Exhaust Pipe.>
  19. Lower the vehicle.
  20. Install the starter. <Ref. to INSTALLATION , Starter.>
  21. 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 10: Locating Upper Side Transmission Gasket Bolts
    G05335715Courtesy of SUBARU OF AMERICA, INC.
  22. Remove the ST.
    Fig 11: Removing ST
    G10268637Courtesy of SUBARU OF AMERICA, INC.
  23. Install the pitching stopper. <Ref. to PITCHING STOPPER , INSTALLATION, Transmission Mounting System.>
  24. Install the engine ground terminals.

    Tightening torque: 

    19 N.m (1.9 kgf-m, 14.0 ft-lb) 

    Fig 12: Identifying Engine Ground Terminals
    G10268616Courtesy of SUBARU OF AMERICA, INC.
  25. Install the operating cylinder.

    Tightening torque: 

    37 N.m (3.8 kgf-m, 27.3 ft-lb) 

    Fig 13: Locating Bolts On Operating Cylinder
    G10268615Courtesy of SUBARU OF AMERICA, INC.
  26. Install the transmission radio ground cord terminal and the engine rear hanger, connect the following connectors, and then secure the clip on the bracket.

    Tightening torque: 

    Transmission radio ground cord terminal 

    13 N.m (1.3 kgf-m, 9.6 ft-lb) 

    Engine rear hanger 

    21 N.m (2.1 kgf-m, 15.5 ft-lb) 

    Fig 14: Identifying Transmission Radio Ground Cord Terminal, Engine Rear Hanger And Clip
    G10268640Courtesy of SUBARU OF AMERICA, INC.
  27. Pour in transmission gear oil and check the oil level. <Ref. to TRANSMISSION GEAR OIL .>
  28. Install the intercooler stay and the intercooler. <Ref. to INSTALLATION , Intercooler.>
  29. Install the collector cover. <Ref. to INSTALLATION , Collector Cover.>
  30. Install the front tires.
  31. Adjust the detent of the MT gear shift lever. <Ref. to ADJUSTMENT , MT Gear Shift Lever.>
  32. Connect the battery ground terminal. <Ref. to BATTERY , NOTE, Note.>