If you're planning to use the truck for anything other than yard art, I'd suggest doing some serious rethinking about running salvage yard tires. Your own safety, and that of the drivers who share the road with you is a pretty risky bet on tires of unknown age and condition. Have you ever tried to keep a heavy vehicle under control after a front tire blowout?
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!