I have to assemble the fresh air ducts to the fender and inner fender on my son’s 57. Has anyone here done this and if so, what rubber parts did you use? It looks like there is a rubber strip that must have been stapled to either the front or rear duct, but there also seems to be some rubber that lines the opening in the inner fender that the ducts attach to. I am starting from scratch as I am assembling all of this from parts off of at least three different cars and no rubber was left on any of it.