[losthope]

its called a door check , and they are notorious for wearing out and falling apart on the inside of the jam...and the reason you see so many of these trucks with the dents in the door from the fender, you can either buy new ones, or you can go pull some out of a jeep Cherokee that will bolt right in, its a upgrade alot of guys do the are a better design and keep the door from opening to far..there used to be a thread in the FAQ but cant seem to find it since the FAQ has been redone...if you or some one finds the thread im talking about it has more info on what year jeep..