2022 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE

Extension Case: Installation

  1. Check the projection (A) of the knock pins.
    NOTE:

    When attached on the extension case side, install on the transmission case side. 

    G13950589Courtesy of SUBARU OF AMERICA, INC.

    Specification: 

    8.5 - 9.5 mm (0.33 - 0.37 in)

    G13950590Courtesy of SUBARU OF AMERICA, INC.
  2. Confirm that the shaft (A), parking pawl (B) and return spring (C) are firmly attached.
    G13950591Courtesy of SUBARU OF AMERICA, INC.
  3. Perform the following operations when replacing the extension case.
    1. Select the transfer driven gear shim. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>TRANSFER CLUTCH>INSTALLATION .
    2. Select the transfer drive gear shim. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>REDUCTION DRIVEN GEAR>INSTALLATION .
  4. Install a new seal ring.
    NOTE:
    • Apply CVTF to the seal rings. 
    • Do not stretch the seal ring more than necessary. 
    G13950592Courtesy of SUBARU OF AMERICA, INC.
  5. Install a new O-ring.
    NOTE:

    Apply CVTF to the O-rings. 

    G13950593Courtesy of SUBARU OF AMERICA, INC.
  6. Using vaseline, set the transfer driven gear shim and transfer drive gear shim.
    G13950594Courtesy of SUBARU OF AMERICA, INC.
  7. Apply liquid gasket to the mating surface of the transmission case as shown in the figure, and temporarily install the extension case and transmission hanger (A).
    CAUTION:

    Be careful not to damage the oil seal of the extension case. 

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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