I have a '75 Plymouth Duster and I am in need of hardware for the door glass. The problem is that I don't know exactly what I need or where to get it. The glass rattles back and forth when I have the windows down part way; when they are all the way up or all the way down they are fine. I did a google search and it looks like cars from the era often have rollers or a channel in the door to hold the glass in place, but I could not find any info on A bodies. When I had the doors apart on my car, I did not notice anything like this and I am thinking that the guide hardware may be missing. Has anyone dealt with this? What am I missing and where can I get it? Thanks!