Front wheels or rear wheels. Front wheels can easily be replaced. It's one assembly, I've gotten Bissell replacement front wheel assemblies for $5. Rear wheels, are probaby on plastic axle. I'd probably remove the hood and they come off and can be reinstalled or something. I would definitely play with it and see what I could. Worst comes to worst, a wheel usually doesn't cost too much, as long as the support of the housing for axle is in good shape.
