What are these wheels off of?

Pulled these out of a buddies barn. Not sure what they're off of. Can any help?
The tire says 5.25/5.50-18.

 

Most likely Chevy,,6 lug. HRP

 

31 32 Chevy

 

Looks like chevy to me


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31 32 chevy , later went to 17 and 16 inch , Have not seen a 17 personally , but I have a few 16s

 

Thanks for the info.