Just wondering what is the width of the wheel on say a 98 Dodge 2500?

Good question. I'm looking at my neighbors '92. It's got impossibly skinny all season Michelins. Probably 16". I'm running with a '83 Chev 1/2 ton shortbox 4x4. I've got the GM rallye wheels, I think they're 8' or so wide. But it looked like the Dog had fatter hubs. What's cheap that'll fit and allow me to run 32 or 33" inchers?