This is the black molding that runs along the windshield pillar and roof of your Mustang. These are normally faded and pitted from the weather. Don't put old trim on a freshly painted car. Latemodel Restoration Supply has the new roof rail moldings you need to make your latemodel Mustang look new again.
I just gatta say i have ordered several things from interior kit to trim pieces to transmission and diff gears and install kit they are allways on the ball and helpfull over the phone both before and after the purchases....thank you for everything!!!!