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Old 12-03-2006, 01:19 AM   #4
silicon212
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Re: What is a Pinion / Pinion Seal, and what does it do?

Correct, specifically the pinion is the gear the driveshaft turns, which in turn drives the ring gear which turns the axles on your car. It's a part of the shaft that comes out the front of the differential. The seal is what seals this shaft and keeps the gear oil contained within the diff.
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