Multi-plate Clutch: Adjustment

Install the drive plate and driven plate to the center differential carrier.
Measure the distance "A" from the end of ST to the multi plate clutch piston using ST.
ST 398643600 GAUGE

Fig 1: Measuring Distance "A" From End Of ST To Multi Plate Clutch Piston Using Special Tool
Courtesy of SUBARU OF AMERICA, INC.
Using the ST, measure the height "B" from the transmission case mating surface to end of ST.
ST 398744300 PISTON GUIDE

Fig 2: Measuring Height "B" From Transmission Case Mating Surface To End Of Special Tool
Courtesy of SUBARU OF AMERICA, INC.
Calculation formula:
T = A - B + 0.45 mm

[T = A - B + 0.0177 in]

Initial standard:

0.2 - 0.6 mm (0.008 - 0.024 in)

Limit thickness:

1.6 mm (0.063 in)

If the clearance exceeds the limit thickness, replace the plate set (drive and driven plate). Select a multi-plate clutch piston driven plate that will bring clearance within the default standard value.

DRIVEN PLATE THICKNESS