1946 Chevy 2 ton. Seems to be hub centric. There is a spacer, I am guessing for between the duals. The spacer is flared on one side. Two of my wheels the spacer flared end fits into. The other 4 wheels the flared end does not fit inside the wheels.
400case 1951 Ward LaFrance T120 1946 Chevy 2 ton 1936 International C35 1923 Sayers and Scovill