What did they (axles) come out of?

I have 10" 8 3/4 brake plates and hardware, no linings and drums yet. In the last picture (wheel using for reference) the wheel center is to small too fit the register, is it possible it's not a MOPAR wheel? BTW these are absolutely 5X4.5 BBP axles
Norm

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That doesn’t look like a mopar wheel to me, at least not in that picture.