Gotcha. I use RainX on my '50 because the wipers don't work at all and I've driven in the rain on more than one occasion and it does the trick.

I was told by a counterman at Advance Auto about another product that's supposed to be even better than RainX. I think it's a MacGuire's product but I can't remember for sure.

1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)