Carl - The 8 lug 17" split rims (wheel + clamp and side rings) where all the same from 1947 - 55.1 for the 17 x 5.0 with 1/2 offset used on both 3600 and 3800 trucks.
Hope someone has one to fill your need. I'll take a peek to see if there's anything in your vicinity on the web and report back if I find anything.

Best of luck in your search!
