88-98 chevy rear window roll down conv.?

Hey guys i got a 89 chevy fullsize. I was wondering has anybody ever done a rolldown back window? I mean where the HOLE window rolls down or slides down and slides up and locks in place? I would LOVE to do that to my truck cause i won't be running ac in mine. Anybody know of a tech article on the web anywhere or any shops in oklahoma texas are able to do it? Pm me if possible. Thanks fellas later! --Josh.

the breezer or something like that sold awhile ago don't know if they still make them or not

C'mon anybody else? I still can't find it. I know someone's gotta know someway to do this! Let a brotha in on the secret!