I am confused about what part Tom is searching for. I pulled out an old door assembly for an art deco truck and it has a "door handle remote" that is identical to the one Bill linked above. The part has dimensions given in Dan's attachment near the top, part # 598912, not 1" diameter. I am not sure what a "door lock remote" is, unless it refers to a part inside the lock mechanism.
I would provide Tom with the part, for the cost of shipping, if he decides that is what he needs, or he can order it from Chevs of the 40s. Kent Zimmerman