A good friend of mine just bought a 65 Riv with the 425 single 4bbl. Real nice clean car, his first old car. He has a limited background with cars so I was helping him change brake lines and during the process I broke the vacuum check valve that is "keyed" and slotted" to lock into the power brake booster. I have rigged a MOPAR check valve to work for now but I feel bad and would like to replace it for him. Does someone sell these or does someone here have an extra one they would part with. Thanks, Jake