This is a common source of leaks at the front of the differential, and can allow oil to sling out over the housing onto the body.

If your pinion seal is leaking, you will want to read up on all the components you need to check. We have an article with pictures for clarity:

https://www.bugeyeguys.com/2021/12/pinion-minion/#more-44598To learn more about your differential fluid, and the other fluids your Bugeye needs, click here for a helpful article!