33\'s on a 15\" Rim Anybody have a problem getting 33-12.50-15 tires to fit on a 15x8 wheel? I bought some 33s last night and the guy said that they may not fit on a 15x8 wheel, rather I would probably need a 15x8.5 wheel. I've never heard this before. I know all tire sizes vary slightly by manufacturer but should this be a problem? I'm hoping to get theses 33's to fit under my stock 86 K5 on a 15x8 wheel. I think these tires on a 15x8.5 wheel definitely wouldn't fit.