I was just looking through my 48-53 GMC big truck master parts catalog.
They list and show pictures of both front and rear "Dayton wheel adapters".

I can't figure out how to tell what the internal bolt pattern is from reading the book. If I could perhaps I could prove or disprove the existence of adapters with 10 lugs on 7.25" circle.

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-