Just another tip for anyone changing tranny fluid. If your fill and drain plugs are screwed up, make sure you have a couple new ones on hand before you start the job. The owner/dealer before me had pretty much wallowed them out so I couldn't get them to break free with the socket. I had to remove mine with a pipe wrench and I am putting new ones back in. Order from Bill Boudreau, he has them $14 shipped for the pair.
http://www.zfdoc.com/