Dietrich Inc.

He was a close friend to Edsel Ford who supported him by talking the owner of the J W Murray Manufacturing Co into partly financing the venture.

Dietrich, Inc. did substantial styling work for standard bodies for Packard, Franklin, and Erskine, a corporate make of Studebaker.

Further, Dietrich, Inc. built custom bodies to single orders, and proposed semi-customs (similarly built as full customs, but in small lots of usually 5–10 units) for the catalogues of Lincoln (then headed by Edsel Ford) or Packard.

Afterwards, he freelanced as Raymond H. Dietrich and finally Ray Dietrich Inc. One of his primary clients was the Checker Cab Manufacturing Company, (renamed Checker Motors Corporation in 1958) in Kalamazoo, MI.

Dietrich was also instrumental in designing the Checker Model A2 introduced in the fall of 1947.