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.
2020 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE
Differential Case Assembly
- Remove the side bearing inner race using ST1, ST2, ST3 and a press.
Preparation tool:
ST1: REMOVER (498077000)
ST2: REMOVER (899864100)
ST3: SEAT (398497701)
- Using the ST, remove the spring pin.
Preparation tool:
ST: STRAIGHT PIN REMOVER (899904100)
- Remove the pinion shaft, and remove the differential bevel pinion, differential bevel gear and thrust washer.
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.