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Extension Case Oil Seal: Replacement

CAUTION: Immediately after the vehicle has been running or after idling for a long time, the differential gear oil will be hot. Be careful not to burn yourself.
  1. Lift up the vehicle.
  2. Clean the transmission exterior.
  3. Remove the center exhaust pipe. Refer to CENTER EXHAUST PIPE EX(H4SO)-7, REMOVAL, Center Exhaust Pipe.
  4. Remove the heat shield cover.
    Fig 1: Identifying Heat Shield Cover
    G06651705Courtesy of SUBARU OF AMERICA, INC.
  5. Remove the propeller shaft. Refer to PROPELLER SHAFT DS-10, REMOVAL, Propeller Shaft.
  6. Using a screwdriver or ST, remove the oil seal trying not to damage the extension case.

    ST 398527700 PULLER ASSY

  7. Using the ST, install the oil seal.
    NOTE: Use a new oil seal.

    ST 498057300 OIL SEAL DRIFT

  8. Install the propeller shaft. Refer to PROPELLER SHAFT DS-11, INSTALLATION, Propeller Shaft.
  9. Install the heat shield cover.

    Tightening torque: 

    18 N.m (1.8 kgf-m, 13.3 ft-lb) 

    Fig 2: Identifying Heat Shield Cover
    G06651705Courtesy of SUBARU OF AMERICA, INC.
  10. Install the center exhaust pipe. Refer to CENTER EXHAUST PIPE EX(H4SO)-7, INSTALLATION, Center Exhaust Pipe.
  11. Adjust the CVTF level and check there is no leakage. Refer to , ADJUSTMENT , CVTF.
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