The basic cowl side stampings are the same 1937, 1938, and 1939 standard. The 1938 Standard fender mounts into the same fender relief as 1937. For 1938 Deluxe Ford made the fender larger so it mounted above the fender relief mount, a hole with a caged nut added in the middle of the cowl, and the cage nuts omitted in the "fender relief" (notwithstanding Ford's practice of "use what you got").