Vent window question
 

My drivers side vent window will fall out if I open it. I assume there is some sort of adhesive that is supposed to hold it in but not sure what to use? Any one know?

Re: Vent window question
 

Amazon.com: 3M 08609 Window-Weld Super Fast...
Any window urethane will work, but I've used this and had no issues. Many consider it the best out there.

Re: Vent window question
 

You know, I'm missing my driver's side vent window right now. If you had an 81-87, I'd say just send me your window and seal your hole up with a piece of acrylic. That's what was in mine when I bought it, and I haven't put much attention to replacing it yet.

Since it's the wrong year, I'll second what bnoon said. That 3M adhesive should do the trick. I have a tube of it that I got from a window installer friend of mine to use when I find my replacement vent window pane.

Re: Vent window question
 

I have an extra set of vent window glass for the 81-87 that does not fit my truck.