That's what I want to do. The dually trucks have a 4" or so offset spacer hub. I'm trying to put that onto a singles truck so I can run late model rims. I THOUGHT it was a bolt on to the existing hub until they came UPS this week. It is actually dished so I need to get my front stripped down to see what I have.
I'll be putting larger studs in to run the late model rims.