I was wondering if all 3/4 and 1 ton 8 lug wheels are interchangeable, i know some are 8x170mm and some are 8x6.5in. I think the mm style is on newer trucks and the in. style is off older trucks, not sure though

they are not.. and there are 3 different kinds of 8 lug bolt patterns... and none of them are interchangable

99' through current Ford super duty has the 8 on 170mm and I think the 05' and newer ford dually have a slighty larger bolt pattern. As the 8 on 6.5" goes you need to watch for different hub pilot sizes. Most after market wheel will fit on all makes if diameter and offset don't interfear.

ok, thanks guys, i found a chart that answered my question, i was thinking about a chevy to dodge swap, anyways