Both headliners are now laid out side by side to check the location of the listings (pockets for the bows), which are sewn into the headliner. This also ensures that the same bows go back into the same pockets. Over the years, the listing material attaches itself to the metal bows, so it'll be necessary to rip the bow free. If the bows are rusty, give them a quick sanding and coat of protective paint.