I removed the drip rails on my 54 AD. The "gap" in the door opening will probably need some work to make it look right. I actually had to rework the left door upper frame to close the gap. I got the idea after seeing a 54 in one of the trucking magazines. I think most of the custom builders remove the drip rails so that they can get that slick clean look. As far as replacing drip rails, find a doner and drill out the spot welds carefully and tack them on your truck.