Yes, I know what you are thinking.
Yes, many many trucks the whole hub holds the dayton wheel.
The truck I saw could use the regular budd type wheels with the removal of the adaptor.
There is the third choice, bud to dayton adaptor without a hub change. Apparently not very common but it was done.
I also talked to a guy at the show who has had several trucks with the adaptors, apparently his father liked dayton wheels and had the adaptors put on all his farm trucks. He is going to check on an AD COE he had that he thinks has the adaptors I need.
I am trying to find out if they did make them in the small 10 lug so I can start looking for a set.
Thanks,
Grigg