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Ahhh... found it.
I was wrong. (I missed those are 8 lug... not 10)
These are the closest I have found...
http://www.steelsoldiers.com/showthread.php?62570-1200r20-8-lug-rims-what.html
Those look like the wheels Dave used to make his conversions... I think we had been calling them "5 ton combat" but someone else said they were FMTV.
I'll hunt for the thread.