I squeezed a 275 on it but you will have to put a spacer, I had a 7/32" on there could had gone smaller but could not find a smaller one locally. Its you also have aluminum drums this should not be a problem.
hey marty. I run 275 60 15 on convo pro rims 7in wide rims have no prob no spacer either if you run the stock gn rims or tr rims will have to use spacer .