Using the ST, install the parking gear to transfer reduction drive gear.
ST 398177700 INSTALLER

Fig 1: Identifying Parking Gear On Transfer Reduction Drive Gear With Installer
Courtesy of SUBARU OF AMERICA, INC.
Install the snap ring to transfer reduction drive gear.

Fig 2: Identifying Snap Ring On Transfer Reduction Drive Gear
Courtesy of SUBARU OF AMERICA, INC.
Using the ST, install the transfer reduction drive gear to transfer reduction drive gear shaft.
ST 499277100 BUSHING 1-2 INSTALLER

Fig 3: Identifying Transfer Reduction Drive Gear With Transfer Reduction Drive Gear Shaft
Courtesy of SUBARU OF AMERICA, INC.
Using the ST, install the ball bearing.
NOTE: Use a new ball bearing.

ST 499277100 BUSHING 1-2 INSTALLER

Fig 4: Identifying Ball Bearing
Courtesy of SUBARU OF AMERICA, INC.
Attach the transfer clutch piston to the reduction drive gear shaft.
NOTE: Apply CVTF to the transfer clutch piston lip.
Install the return spring.

Fig 5: Installing Return Spring
Courtesy of SUBARU OF AMERICA, INC.
Install the transfer clutch piston seal.
Using the ST, install the snap ring.
ST 18762AA000 COMPRESSOR SPECIAL TOOL

Fig 6: Identifying Snap Ring And Transfer Clutch Piston Seal
Courtesy of SUBARU OF AMERICA, INC.
Install the pressure plate, driven plate, drive plate and snap ring.

Fig 7: Identifying Snap Ring
Courtesy of SUBARU OF AMERICA, INC.
Before measuring clearance "A", place same thickness shims on both sides to prevent the retaining plate from tilting.

When clearance "A" exceeds the limit for use, replace the drive plate and driven plate as a set, and select and adjust the pressure plate within the initial specified value.

Initial standard:

0.7 - 1.1 mm (0.028 - 0.043 in)

Limit thickness:

1.6 mm (0.063 in)

Fig 8: Measuring Clearance Between Drive Plate And Driven Plate (View 1 Of 2)

Courtesy of SUBARU OF AMERICA, INC.

Pressure plate
Part No.	Thickness mm (in)
31593AA151	3.3 (0.130)
31593AA161	3.7 (0.146)

Check the clearance between the snap ring and retaining plate. Refer to , INSPECTION , Transfer Clutch.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Transfer Clutch: Assembly

Use the Manual With the Right Hardware

When to See a Mechanic

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