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Home >> Subaru >> 2021 >> Crosstrek Hybrid >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Manual Transaxle & Differential (6MT)) >> Differential Side Retainer Oil Seal >> Replacement

Differential Side Retainer Oil Seal: Replacement

WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the ground terminal from battery sensor. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
  2. Remove the front tires. Ref. to WHEEL AND TIRE SYSTEM>TIRE AND WHEEL>REMOVAL .
  3. Lift up the vehicle.
  4. Using the TORX® bit T70, remove the drain plug, and drain the transmission gear oil completely.
    CAUTION:
    • Immediately after the vehicle has been running or after idling for a long time, the gear oil will be hot. Be careful not to receive burns.
    • Be careful not to spill the gear oil on the exhaust pipe, to prevent emission of smoke or causing a fire. If gear oil is spilled, wipe it off completely.
  5. Replace the gasket with a new part and install the drain plug using the TORX® bit T70.

    Tightening torque:  44 N.m (4.5 kgf-m, 32.5 ft-lb) (aluminum gasket, silver)

    70 N.m (7.1 kgf-m, 51.6 ft-lb) (copper gasket, brown)

    70 N.m (7.1 kgf-m, 51.6 ft-lb) (metal gasket, black)

    G10322885Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the crossmember support - rear.
    G11256105Courtesy of SUBARU OF AMERICA, INC.
  7. Remove the front exhaust pipe. Ref. to EXHAUST (H4DO (EXCEPT FOR HEV))>FRONT EXHAUST PIPE>REMOVAL .
  8. Disconnect the stabilizer link.
    G10275495Courtesy of SUBARU OF AMERICA, INC.
  9. Remove the bolt securing the ball joint of the front arm to the housing, then separate the front arms and the housing.
    G10268622Courtesy of SUBARU OF AMERICA, INC.
  10. Using a crowbar, separate the front drive shaft.
    G08318895Courtesy of SUBARU OF AMERICA, INC.
  11. Remove the differential side retainer oil seal using the ST (PULLER ASSY).
    CAUTION: If removing the oil seal with a flat tip screwdriver, be careful not to scratch the differential side retainer.
  12. Using the ST, install a new differential side retainer oil seal by lightly tapping with a plastic hammer.
    CAUTION:
    • Apply transmission gear oil to the oil seal lips, and install the oil seal while being careful not to deform the lip.
    • Check the identification marks (L, R) during installation not to mix up the oil seals RH and LH.

    Preparation tool:  ST: DIFFERENTIAL SIDE OIL SEAL INSTALLER (18675AA000)

    G10322906Courtesy of SUBARU OF AMERICA, INC.
  13. Set the ST (OIL SEAL PROTECTOR) to the differential side retainer.
  14. Replace the circlip of the front drive shaft with a new part.
  15. Install the front drive shaft and remove ST.

    Preparation tool:  ST: OIL SEAL PROTECTOR (28399SA010)

    G08318906Courtesy of SUBARU OF AMERICA, INC.
  16. Insert the front arm ball joint and tighten the mounting bolt.
    CAUTION:
    • Do not apply grease to the tapered portion of ball stud.
    • Before tightening, make sure the lower side of front axle housing and stepped section of ball joint are in contact.
    • Be careful not to damage the boot of the joint.

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

    G10268633Courtesy of SUBARU OF AMERICA, INC.
  17. Replace the flange nut with a new part, and install the stabilizer link.

    Tightening torque:  60 N.m (6.1 kgf-m, 44.3 ft-lb)

    G10275495Courtesy of SUBARU OF AMERICA, INC.
  18. Install the front exhaust pipe. Ref. to EXHAUST (H4DO (EXCEPT FOR HEV))>FRONT EXHAUST PIPE>INSTALLATION .
  19. Install the crossmember support - rear.

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

    G11256105Courtesy of SUBARU OF AMERICA, INC.
  20. Lower the vehicle.
  21. Pour in transmission gear oil and check the oil level. Ref. to MANUAL TRANSMISSION AND DIFFERENTIAL (6MT)>TRANSMISSION GEAR OIL .
  22. Install the front tires. Ref. to WHEEL AND TIRE SYSTEM>TIRE AND WHEEL>INSTALLATION .
  23. Connect the ground terminal to battery sensor. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
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