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 Forester BaseFACTORY OEM SERVICE PROCEDURE
Extension Case: Assembly
- Install all plugs using new O-rings or gaskets.NOTE: Apply CVTF to the O-rings.
Tightening torque:
T1: 22 N.m (2.2 kgf.m, 16.2 ft.lb)
T2: 35 N.m (3.6 kgf.m, 25.8 ft.b)
- Install the dust cover into extension case.
- Install a new extension case oil seal to extension case. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>Extension Case Oil Seal>REPLACEMENT .
Factory Service Tools
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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.