I have a 52 chevy half ton (Just bought it yesterday so brand new newbie). I just have a quick question. How do you protect your door windows when you close the doors.

I know, some are going to say, don't slam it. But it appears that even when I try to go slowly, the window moves just enough for a potential break or crack. Is there some type of adjustement I can do ?

Let me know and thanks for your time.
Peioa