Indianajay, You shouldn't have any problems running 8.25 x 20 tires, on your truck. I presently have 8.25 x 20's all the way around my '53 Chevy COE. Have ran 9.00 x 20's, on it, in the past.
Spanky Hardy Collector Of Fine Old G.M. COE Trucks & Antique Holmes Wreckers
