I think i broke rear main bearing

It might not fail with a stud, I've seen them fail with the use of bolts. I do wish you the best of luck.

You don’t think that was my first repair like that do you?

I’ve been doing this a LONG time and I’ve never EVER had one fail. So if you or your buddy is failing them, take a look in the mirror.

It’s essentially the same repair for spark plug holes. Zero failures there too.

I don’t need luck.