you might want to try an impact wrench for those stubborn bolts. you can pick up at a hardware store, hell even super walmart sells them, though i don't think they are cheap. heres one thats not to bad in price that might help you out:hezy said:
http://www.homedepot.com/prel80/HDU...cm_pla=D-25X&cm_ite=BID10300151-impact_wrench
as for the michigan winter rust issue ... i'm your rival to the south
hope you get those bolts off ... i know how frustrating it can be to be held up by that problem.