OK, I'll try again tomorrow. I first hit it with a 2# and then a 3# and then the digging bar from the end, which must be about 15#. I've got an 8# maul, I'll try that next, didn't realize the shaft will come out so I'll put the flat washer back on. I'd really prefer if I didn't have to send it in. I was being a bit cautious, I suppose I can thread that 6" bolt in all the way, there doesn't appear to be anything on the other side that will hinder doing that? I notice to that there's some end play on that shaft and when I hit it I make sure that the arm is pushed all the way up against the trans body, maybe I should try it away from the body to give it some momentum?