I am changing my factory tuners that are on my Esp Explorer for Sperzel Locking ones cuz I love them on my ESP EC-1000. I looked at the tuners and I figured all you have to do is unscrew the top nut and they should come out, is this right? IF anyone knows how to do this correctly without screwing up the guitar please tell me, it looks simple but i dont want to under-estimate this. Thanks
~Metal Up Your @$$~ \m/
You have to do the following...
-Take off the top nut, if it's a nut. It may be a ferrule for the tuner post to fit in the hole.
-There may also be screws holding the back plate on the tuner. You'll have to take those out too.

If they don't fit, you're going to have to redrill. Just be careful.