I believe that the chevy "P" series vans or "step vans" have a 10 bolt wheel that looks simular in size. The uniform company that we use where I work has one. I noticed it the other day when he was leaving. I'll have to take a closer look at it next time to see exactally what size the wheels and tires are. I believe mine are hub piloted, Where do you measure the bolt circle on a ten bolt? I think it's from the middle of one wheel stud straight across to the middle of the opposing stud. Is this correct???