The burlap-lined window track supports the window glide. This guyadjusts in and out to control window-glass angle. Move it outward at thebottom, and the window glass moves inward at the top. Move it inward,and the glass moves outward up top. Make your adjustments, then run theglass up and down to check the adjustment. The window glass should liesnugly into the weatherstrip with the door closed.