On a 41 GMC on the doors on the interior they have a trim/ molding/ whatever it's called, piece that goes from the bottom of the window up and around the door frame back to the other side to the bottom of the window. Mine on both doors is a two piece unit. I would have thought these would be 1 piece unit. When placed into their proper position there is a smell gap between them like they were cut at some point. Does anyone have any information on this?