I'm trying to locate tires for my '51 GMC 250. The radial equivalent is a 215/85r/18, 18" load rated tires are pretty scarce. The Truck has currently has split rims, pretty sure they are not the "Widow Makers". I'm not a stranger to split rims and have no issue doing the mounting myself ( Army Trainining Sir

). I can get radial tubes thur NAPA.
I looking for something that looks period correct and load rated D - F.
Any ideas ??