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Home >> Subaru >> 2015 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Continuously Variable Transaxle (CVT)) >> Extension Case >> Disassembly
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Extension Case: Disassembly

WARNING: This page is about a different variant/trim than selected.
  1. Remove the dust cover from extension case.
  2. Remove the snap ring using the ST and press.
    CAUTION: If the operation is performed with the dust cover installed, place a table between the extension case and the press table.

    ST 18762AA001 COMPRESSOR SPECIAL TOOL

    Fig 1: Removing Snap Ring Using Compressor Special Tool (ST 18762AA001)
    G10268214Courtesy of SUBARU OF AMERICA, INC.
  3. Supply compressed air to remove the transfer clutch piston.
    Fig 2: Locating Transfer Clutch Piston
    G10268215Courtesy of SUBARU OF AMERICA, INC.
  4. Remove the D-ring and O-ring from the transfer clutch piston.
  5. Remove the extension case oil seal from the extension case.
  6. Remove the plug from the extension case.