Are you talking about one like mine (pic below)?? Pheew!! I got mine back in 84 and the were closing them out back then. Mine is steel and louvered, most of the steel ones were chrome and I had a hard time finding a bare metal one. I didn't like the look of the fiberglass ones and I bet they vibrate on the highway way worse than mine does!! One thing, I really regret putting it on mine now. When I redo my truck, it is definatly coming off, the only probem is, I had to put 4 pretty big holes in my roof! They will be fun to fill!! Good luck finding one, very few are probably still around and I doubt any still new. I have been looking for a flex-through (80's) rear window for mine since the mid 80's and have only found 1 back in the late 80's and the ahole wouldn't sell it to me. I should have just took it! LOL
