Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE
Transfer Clutch: Disassembly
- Remove the snap ring, and then remove the pressure plate, drive plate and driven plate.
- Remove the snap ring using the ST and a press.
Preparation tool:
ST: COMPRESSOR SPECIAL TOOL (18762AA001)
- Remove the transfer clutch piston seal.
- Remove the return spring.
- Remove the transfer clutch piston by blowing compressed air through transfer clutch hole.NOTE: Block the hole opposite to the one to be blown with compressed air.
- Using the ST and a press, remove transfer drive gear, parking gear and ball bearing.
Preparation tool:
ST: BEARING REMOVER (18767AA000)
NOTE: Let the ST sit on the parking gear. - Remove the snap ring from transfer drive gear.
- Using the ST1, ST2 and a press, remove the parking gear from the transfer drive gear.
Preparation tool:
ST1: BUSHING 1-2 INSTALLER (499277100)
ST2: BEARING REMOVER (18767AA000)
Factory Service Tools
Use the Manual With the Right Hardware
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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.