See if they're rated for road use and what the max allowable speed is, if that checks out OK I think you could use them. They may or may not wear well if not primarily intended for road use though.
They'll also have a weight rating and PSI on the sidewall, so you could answer that question too.

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-