I recently noticed some of the the coverings of the bottom side rails peeling off. They seem to cover and protect steel railings of the chassis. I have removed them and am planning on cleaning the rails with a scotch pad and painting over them with POR, but would like to replace the plastic like strips that cover them and are glued on the the rails. If anyone knows the name or part number or if there is another similar aftermarket part, please let me know. Thanks!