Which are plain drop centet type?

8 Lug?

Not 'Budd' Dished types?

I have 7:50 - 17 Tires and period aftermarket 'Firestone' Split Rims, on my 1960 Chevrolet P-20 Step Van, and, no one left here in Las Vegas will work on them.

So...were there any 8 Lug conventional type 7:50 - 17 Rims which would alleviate the problem of the Split Rims being rejected by Tire and Truck Tire places?