Windows won't seal

I have an 84 Z28 and its a T-Top and the windows won't seal correctly. When the window is rolled almost all the way up... it shakes in and out. Not by a whole lot, but by a enough. And now it seals okay on the top but hardly on the sides toward me rear quarter panel. Do you guys know what comes loose over time to cause this? It's annoying as hell.

Pull the door panels and look at the top of the door. There are 2 "felt" wipers that hold tension on the window, they are probably worn out. You can replace the "felt" part with the soft side of velcro. Just remove the worn out felt from the metal piece and wrap the velcro around (use the self adhesive kind)

Pull the door panels and look at the top of the door. There are 2 "felt" wipers that hold tension on the window, they are probably worn out. You can replace the "felt" part with the soft side of velcro. Just remove the worn out felt from the metal piece and wrap the velcro around (use the self adhesive kind)

Nope, not it my man. I checked them and they are adjustable and i adjusted them all the way out and nothing worked. However, i am missing my corner window guide. well i aint missing it.. but the outer portion of it is worn off, so it doesnt really guide. maybe that will do it too

Well, if you are missing the outer part of the triangle seals and front guide, then yeah, that's probably it. Also check your weather stripping and see if it is dry rotted or has shrunken back and become hard.