has anybody done this? I've been trying all day, and I got the stem off, but I can't freaking get the bolt under that off. I went at it with a wrench until I stripped it to the point that I started getting scared.
have you ever disassembled a headset before? if the answer is no, make sure you're going about it the right way. check sheldon brown's website for more information. if it's too confusing, or you think you might've stripped a thread or a bolt beyond what you can take care of, take it to a shop. there's nothing wrong with asking for help and supporting a local business.
with some more information, though, i wouldn't be surprised if people here can help you out. what bolt are you talking about?
its threaded, and the bolt I'm talking about it the one on the top holding the fork in the tube
I don't mean to be a dick, but your terminology is pretty confusing. I assume you're talking about the locknut? A threaded headset has, from bottom to top, a screw on race and a locknut.
If you're stripping it, then your wrench is the wrong size. They make special headset wrenches for this very purpose. Also, if you're using channel locks, stop! Or anything with teeth for that matter. Also, it should not be hard to get this locknut off... time to hit up the LBS.