Multi-plate Clutch: Adjustment

1. ST 398643600 Gauge
2. L = Measured value - 15 mm
3. (L = Measured value - 0.59 in)

Fig 1: Measuring Distance From Extension Case Joining Surface To Multi-Plate Clutch (LSD) Piston

Courtesy of SUBARU OF AMERICA, INC.

1. A:  Measured value
2. B:  Special tool thickness [15 mm (0.59 in)]
3. L:  Distance from the extension case edge to the rear driveshaft edge.

1. ST 398744300 Gauge
2. l  = Measurement value - 50 mm
3. (l  = Measurement value - 1.97 in)

Fig 2: Measuring Height "l" From Transmission Case Joining Edge To Center Differential Clutch Drum Edge

Courtesy of SUBARU OF AMERICA, INC.

1. A:  Measurement value
2. B:  Special tool thickness [50 mm (1.97 in)]
3. l  : Measure distance from transmission case joining surface to multi-plate clutch (LSD) piston.

T = (L + 0.45 mm) - l 

[T = (L +0.0177 in)- l  ]

T:  Measurement value between clutch drum and multi-plate clutch (LSD) piston

L:  Distance from extension case joining surface to multi-plate clutch (LSD) piston

0.45:  Gasket thickness

l:  Distance from transmission case joining surface to center differential clutch drum edge

1. Standard value:  0.2 - 0.6 mm (0.008 - 0.024 in)
2. Limit value:  1.6 mm (0.063 in)

If outside the standard value, replace the plate set (drive and driven plate). Select a multi-plate clutch (LSD) piston side adjustment plate that will bring clearance within the standard value.