Adarcy, If you were referring to those strips of black cloth-like tape like stuff, that is factory. Except usually those were little square over the square holes. Don't know why they are where they are on yours, unless the guy at the factory was in a hurry or didn't know what they tape was for and was told that "some of this black tape here goes on the inside of the door", so he put some there! And the paper liner like stuff was treated to be water repellant so that any water passing through there did not soak the back of the door panel upholstery cards. Most of us removed those the first time we removed the door panels and end up having to replace the door panels because they get water soaked eventually. If you are up to it, you should think about some plastic sheeting to do the same job. Unless you never plan on getting your Bronco wet!
