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Extension Case Oil Seal: Replacement

  1. Set the vehicle on a lift.
  2. Disconnect the ground cable from battery.
  3. Lift up the vehicle.
  4. Clean the transmission exterior.
  5. Drain the ATF completely.
    NOTE: Tighten the ATF drain plug after draining the ATF.
    1. Tightening torque:  25 N.m (2.5 kgf-m, 18.1 ft-lb)
    Fig 1: Drain ATF Completely
    G01998814Courtesy of SUBARU OF AMERICA, INC.
  6. Remove the rear exhaust pipe and muffler.

    Non-turbo model  . See REMOVAL , Rear Exhaust Pipe and REMOVAL , Muffler.

    Turbo model  . See REMOVAL , Rear Exhaust Pipe and REMOVAL , Muffler.

  7. Remove the heat shield cover (if equipped)
  8. Remove the propeller shaft. See REMOVAL , Propeller Shaft.
  9. Using the ST, remove the oil seal.

    ST 398527700 PULLER ASSY

  10. Using the ST, install the oil seal.

    ST 498057300 INSTALLER

  11. Install the propeller shaft. See INSTALLATION , Propeller Shaft.
  12. Install the heat shield cover (if equipped).
  13. Install the rear exhaust pipe and muffler.

    Non-turbo model  . See INSTALLATION , Rear Exhaust Pipe and INSTALLATION , Muffler.

    Turbo model  . See INSTALLATION , Rear Exhaust Pipe and INSTALLATION , Muffler.

  14. Pour ATF and check the ATF level. See ATF .
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