I'm replacing axle seals, one was leaking. Removed the pumpkin cover, removed the lock bolt for pinion shaft and noticed it was broken off. Part of it is still in the shaft so it won't slide out. Thought maybe it was broken at and not threaded, wrong. Stuck a real small magnet in there, but no luck. It's a small hole, maybe an angle drill and easy out, it's a really tough spot. Any suggestions would be welcome.