Differential Side Retainer Oil Seal: Replacement

WARNING: This page is about a different variant/trim than selected.

Lift up the vehicle.
Remove the front under cover. Refer to REMOVAL .
Using the TORX® bit T70, remove the drain plug, and drain the transmission gear oil completely.

Fig 1: Identifying Drain Plug
Courtesy of SUBARU OF AMERICA, INC.
Tighten the drain plug using TORX® bit T70.
NOTE: Use a new gasket.

Tightening torque:

44 N.m (4.5 kgf-m, 32.5 ft-lb) (Aluminum gasket silver)

70 N.m (7.1 kgf-m, 51.6 ft-lb) (Copper gasket, brown)

70 N.m (7.1 kgf-m, 51.6 ft-lb) (Metal gasket, black)

Fig 2: Identifying Drain Plug
Courtesy of SUBARU OF AMERICA, INC.
Remove the center exhaust pipe. Refer to REMOVAL .
Separate the front drive shaft from the transmission. Refer to REMOVAL .
Remove the differential side retainer oil seal.
NOTE: Use the ST 398527700 PULLER ASSY to remove the oil seal. If removing the oil seal with a flat tip screwdriver, be careful not to scratch the differential side retainer.
Using the ST, install the differential side retainer oil seal by lightly tapping with a plastic hammer.
NOTE:
- Apply transmission gear oil to the oil seal lips, and install the oil seal while being careful not to deform the lip.
- Check the identification marks (L, R) during installation not to mix up the oil seal RH and LH.
- Use a new oil seal.
ST 18675AA000 DIFFERENTIAL SIDE OIL SEAL INSTALLER

Fig 3: Installing Differential Side Retainer Oil Seal Using Installer
Courtesy of SUBARU OF AMERICA, INC.
Install the front drive shaft. Refer to INSTALLATION .
Install the center exhaust pipe. Refer to INSTALLATION .
Install the front under cover. Refer to INSTALLATION .
Lower the vehicle.
Add the transmission gear oil through the oil level gauge hole. Refer to TRANSMISSION GEAR OIL .