Oil Seal: Replacement

WARNING: This page is about a different car, the 2020 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the ground terminal from 12V engine restart battery sensor. Refer to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
Lift up the vehicle.
Clean the transmission exterior.
Using the TORX® bit T70, remove the drain plug, and drain the transmission gear oil completely.
CAUTION:
- Immediately after the vehicle has been running or after idling for a long time, the gear oil will be hot. Be careful not to receive burns.
- Be careful not to spill the gear oil on the exhaust pipe, to prevent emission of smoke or causing a fire. If gear oil is spilled, wipe it off completely.
Replace the gasket with a new part and install the drain plug using the TORX® bit T70.
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)

Courtesy of SUBARU OF AMERICA, INC.
Remove the rear exhaust pipe. Refer to EXHAUST (H4DO (EXCEPT FOR HEV))>REAR EXHAUST PIPE>REMOVAL .
Remove the center exhaust cover.

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Remove the propeller shaft. Refer to DRIVE SHAFT SYSTEM>PROPELLER SHAFT>REMOVAL .
Using the ST, remove the oil seal.
Preparation tool:

ST: PULLER ASSY (398527700)

Courtesy of SUBARU OF AMERICA, INC.
Install a new oil seal using ST.
NOTE: When grease is not applied to the oil seal lips, apply the transmission gear oil to the oil seal lips.

Preparation tool:

ST: INSTALLER (498057300)

Courtesy of SUBARU OF AMERICA, INC.
Install the propeller shaft. Refer to DRIVE SHAFT SYSTEM>PROPELLER SHAFT>INSTALLATION .
Install the center exhaust cover.
Tightening torque:

18 N.m (1.8 kgf-m, 13.3 ft-lb)

Courtesy of SUBARU OF AMERICA, INC.
Install the rear exhaust pipe. Refer to EXHAUST (H4DO (EXCEPT FOR HEV))>REAR EXHAUST PIPE>INSTALLATION .
Lower the vehicle.
Pour in transmission gear oil and check the oil level. Refer to MANUAL TRANSMISSION AND DIFFERENTIAL (5MT)>TRANSMISSION GEAR OIL .
Connect the ground terminal to 12V engine restart battery sensor. Refer to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .