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I learned something about using the hollow stud as a clue about gear oil in the bearings. I have my CTIS wheel valves removed for now and have brass pipe caps on the hollow studs. Three rear studs dumped a lot of gear oil and grease was washed completely from the outer bearing. The fourth...

I have a rear hub off my A3 for the first time on the account of gear oil coming out of the hollow stud. The outer bearing came out fine and the hub and drum slid off - it's a lot heavier than it looks! Anyway I was hoping the inner bearing would just come out, but it's actually driven in? I...