As far as the sending units at John's Mustang go, they are the D0ZZ sending units. He has the C8ZZ in the catalogue, but, it's the DOZZ on the shelves. They're about a hundred bucks. They also have the 3/8 outlet, but, in a pinch, that's the way that I would go instead of a repop. We had a 70 Mach I in the shop that someone had put a repop in which failed entirely in less than a month.