Mikeg, is this the piece you are referring to? Listed for 65-66 but 64 would fit. May or may not have been an original option in 64. I did not research but have no reason to question the responses above.
~ HB 1966 Chevrolet K-10 | Ghost: formerly Flappy Fenders | In the Stovebolt Gallery 1962 Chevrolet C10 1962 Suburban
