Spindle ID

I've got a couple of spindles that I picked out of someone's dead pile. But I don't know if they can be identified, maybe from dimensions. I tried to find a casting number but I can't find one. They are 10 7/8 rotors and of course big bolt pattern. They have a lower steering arm with a tapered hole that receives the ball joint taper. B body....truck? Any ideas or telling dimensions?

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