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Home >> Subaru >> 2021 >> Forester Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> CVT Transaxle System >> Reduction Driven Gear >> Adjustment
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Reduction Driven Gear: Adjustment

  1. Measure the height "A" from the ST upper face to the ball bearing catch surface.

    Preparation tool: 

    ST: GAUGE (499575600)

    G08317941Courtesy of SUBARU OF AMERICA, INC.
  2. Measure the height "B" from the ST to the mating surface of the transmission case.

    Preparation tool: 

    ST: GAUGE (499575600)

    G11255795Courtesy of SUBARU OF AMERICA, INC.
  3. Obtain the thickness of transfer drive gear shim using the following formula to select one to three transfer drive gear shims.

    T mm = A - B - (0.05 - 0.25)

    [T in = A - B - (0.002 - 0.01)]

    T: Shim thickness

    A: Height from the ST upper face to the ball bearing catch surface

    B: Height from ST to transmission case mating surface

    0.05 - 0.25 mm (0.002 - 0.01 in): Clearance