I used welting on my 46. There is a short piece on the front fenders between the fender and the cab. The rears get the full treatment. I used some 30lb roofing felt between the running boards and the fenders. Front and back.
The roofing felt is a lot cheaper than the ones you can buy from the venders, and is the same stuff. You just have to make a pattern and cut it out, but that easy.
George
