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Differential Side Retainer Oil Seal: Replacement

WARNING: This page is about a different variant/trim than selected.
  1. Remove the collector cover. (turbo model)
  2. Lift up the vehicle.
  3. Remove the front under cover. Refer to FRONT UNDER COVER .
  4. Using the TORX® bit T70, remove the oil drain plug, and drain the transmission gear oil completely.
    Fig 1: Identifying Oil Drain Plug
    G05332645Courtesy of SUBARU OF AMERICA, INC.
  5. Tighten the oil drain plug using TORX® bit T70.
    NOTE: Use a new gasket.

    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) 

    Fig 2: Identifying Oil Drain Plug
    G05332645Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the center exhaust pipe. (non-turbo model) Refer to CENTER EXHAUST PIPE .
  7. Remove the center exhaust pipe. (turbo model) Refer to CENTER EXHAUST PIPE .
  8. Separate the front drive shaft from the transmission. Refer to FRONT DRIVE SHAFT .
  9. Remove the differential side retainer oil seal.
    NOTE: Use the ST 398527700 PULLER ASSY to remove the oil seal. If removing the oil seal with a flat tip screwdriver, be careful not to scratch the differential side retainer.
  10. Using the ST, install the differential side retainer oil seal by lightly tapping with a plastic hammer.
    NOTE:
    • 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 seal RH and LH.

    ST 18675AA000 DIFFERENTIAL SIDE OIL SEAL INSTALLER

    Fig 3: Identifying Differential Side Oil Seal Installer
    G05002972Courtesy of SUBARU OF AMERICA, INC.
  11. Install the front drive shaft. Refer to FRONT DRIVE SHAFT .
  12. Install the center exhaust pipe. (non-turbo model) Refer to CENTER EXHAUST PIPE .
  13. Install the center exhaust pipe. (turbo model) Refer to CENTER EXHAUST PIPE .
  14. Install the front under cover. Refer to FRONT UNDER COVER .
  15. Lower the vehicle.
  16. Add the transmission gear oil through the oil level gauge hole. Refer to Transmission Gear Oil  .
  17. Install the collector cover. (turbo model)
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