Studying your pictures some more... I think the seller torched the ends off a late model (I still think Japanese) delivery truck/van axle and he's trying to flog this junk based on the bolt pattern. The wheel to fit this hub would need a LARGE pilot hole and considerable offset in my eye... consistent with a light commercial application, methinks...
P.S.: I'd call the seller's bluff and ask a few pointed questions!
P.S.S. : Disc brake conversions are readily available for Chevy beam axles, if that's what your looking for...
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