Is it off an Allis. . .well, I think so. I bought them from Worthington Ag Parts. The size matches, the color matches, the outer 3 hole bolt circle is perfect, the size of the inner 6 bolt circle matches, but the size of the hole in the inner circle is what throws me. I'll have to have a closer look at bolting them on subsequent like that, I'm not sure that will work, but maybe they stack up with the clearance to do that. You think 3 bolts each will hold them?