I looked at my 20" wheels and see that the centers are attached to the rim at the edge of the rim. The OD of the centers are 19.5 in which would only fit a 22.5 wheel in the bump up portion of the rim.
I don't have a 22.5 wheel but usually that part is in the center of the rim which if the center were attached there would not give the offset needed,especially on the dually rears.
Here's what I need or would like---- A wheel manufacture that would sell me 22.5 blank wheels, like with no center hole or stud holes drilled in them. Then I could have a machine shop put in a 4.75 center hole and 10 stud holes in it.
I know, your probably saying Dream On big boy,but I've got an 8N running 24" rears and 12" fronts and they don't make wheels that size to fit an 8N
Maybe I could ask for those wheels in chrome or aluminum also, lol
Somewhere, somehow there's got to be a solution for this dilemma.
Dan