What is the best way to clean up these types of window tracks? I've thought about sand blasting them with a fine silica and I've thought about having them dip stripped. Also, once the rust is gone and they are good and slick, what if any lubricant is proper to put on them.
One final question. If you've ever taken these out and then put them back in you know how hard they can be to position correctly for easy window movement. Is there any tricks to putting these back in?