leaky windows
The windows on my 1983 c30 also leaked, but the leak was between the glass and the metal frame, not between the metal frame and the fiberglass cabin trunk. My fix was to dig out the old silicone, mask off the aluminum frame and the glass and then caulk with new silicone. This worked well. Also found a leak where the aluminum seams together on the outside of the frame. A little silicone solved this problem also. I guess what I'm saying is, before you pull the whole window make sure you know where the leak is coming from. If you pull the vinyl strip on the inside of the window and there is water in the track, chances are your leak is between the glass and the aluminum frame.