'93 Grand Cherokee Limited 5.2L. This little pin mysteriously appeared beneath my driveshaft while pulling my right rear wheel bearing last night. It had a light coating of oil over it which kinda smells like gear oil. Any idea where it came from? That drum brake assembly perhaps? I've been told that it looks like a shaft lock pin for a Trak-Lok differiential but I have an open diff. I'd hate to have to take this thing apart again. Once was more than enough. The keychain is pictured for an idea of scale.
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It might not even be off of the truck for all I know. Ideas?