What is that felt part that guides the window up and down and protects it from getting scratched? Mine is completely gone and I don't want to scratch up my car any more. Right now it got just the the tint. I am gonna get the windows retinted anyways so I wanna fix this. Any how to's on how to change it out would be helpful too. Thanks!

Do you mean these? There is a guide to adjusting them and other window parts on my Tech Page.

Yup. But I just need that felt piece at the end. Do I have to buy the whole thing?? Thanks and I will look into your tech page.

The whole thing. Youll want new window weatherstripping too. It also has felt guides.