I bought Nu-Relics For my 53 3100. You can never have my vent windows. The super cool little visors over them are one of my favorite things on these trucks. I haven't installed them yet. I did a lot of research and these seem to be one of the best. They are heavy and very well made. They are a direct fit ($440). I also opted for the window crank switches and wiring harness ($265). That's a lot for switches and I was afraid they would get broken. I was wrong. These are really stout aluminum and have a strong spring on them. Anyway I just thought I would throw that out there. https://www.nu-relics.com/
