Rear window glass

Alright, I got a 88 C1500, with a 93 C1500 parts truck. the 93 has a slider rear window on it, the 88 doesn't. I want to take the 93's window out, so....

How do I get the old window out??? I know on the old ones there was a strip you removed and then the window pushed out. It doesn't look the same. Is it glued in? Am I going to have to use piano wire and cut the window out?

Installing the good 'ol beer window, huh. Not sure why you want to do such a thing considering it just makes your truck even easier to break in to. But to each his own. If I remember correctley, all you need to do is remove that "bead" (or in your words "stripe" and the window will simply pop out.

any body else? It doesn't have the seam in it to remove and push out. Is it glued in? HELP!