Front Reduction Drive Gear: Adjustment

Measure height "A" from the ST upper face to the bearing end face using the ST.
ST 398643600 GAUGE

Fig 1: Checking ST Upper Face And Bearing End Face Height
Courtesy of SUBARU OF AMERICA, INC.
Measure depth "B" from the converter case cover upper face to the bearing catch surface.

Fig 2: Checking Converter Case Upper Face And Bearing Catch Surface Depth
Courtesy of SUBARU OF AMERICA, INC.
Using the ST, measure height "C" from the ST upper face to the converter case cover mating surface.
ST 398643600 GAUGE

Fig 3: Checking ST Upper Face And Converter Case Cover Mating Surface Height
Courtesy of SUBARU OF AMERICA, INC.

Using the following formula, calculate clearance "T" to select shims.

Calculation formula:

T mm = (A - 15) - ((C - 15) - B)

[T in = (A - 0.591) - ((C - 0.591) - B)]

T: Clearance

A: Depth from the ST upper face to the bearing end surface

B: Depth from the converter case cover upper face to the bearing catch surface

C: Height from the ST upper face to the converter case cover mating surface

15 mm (0.591 in): Thickness of ST