One genuine new old stock Chrysler door opening weatherstrip. Reference part number 1783136 (same as 3729424). They are the same right or left and they attach to the door and seal between the cab opening and door when the door is closed. This is molded rubber with stitching inserts for strength. Real Chrysler parts with molded corners-why waste your time on one-size-fits-all "universal" JC Whitney stuff? If you've been wondering what to do with that petrified weatherstrip on your old Adventurer's doors when you  restore it, here's what you have been looking for.