How do you get the pan off of this guy? I removed every bolt I could find, including the one hidden above the oil filter housing, and the ones that attach it to the bell housing. I put a wood block against it and whacked it but it won't move. I'm stumped, and frustrated. It's the aluminum cast pan fyi. Reason I'm pulling it is that it has a nasty rod knock and I want to see if the crank is damaged. Thanks in advance.