I have a print off from this winter, which had the AC option on it, because it said coming (Spring 2003) for Boxer Cabs. There was a link on the site that said find out more information on Boxer Cab options, that link is now a dead link. The guy I talked to at Jodale, his name was Angus Kyle. He is the one that told me they were coming out with a better AC unit later on in the year. Like I said before, I was going to do it then decided to just wait, then I haven't give it much thought at all after I haven't been dying inside of my tractor at all this summer. So I don't know whats up. Either way all the windows are very easy to remove.