dana 70 or 80 do not have that pattern .I think?the rear in our 1996 dodge 3500 with a cummins and 4wd has a dana 80 in the rear and that has the 8-6.5 bolt pattern.the rear in my 2006 dodge crew cab ,cummins 4wd is also a dana 80 and that has the bigger hub and 8-6.5 bolt pattern.the rear in our 3500 hd chevy has 10bolt pattern dana 80different axle ends than the dodge but is also a different pattern than the c-40 or 50 rear.I think if I found a 22.5 rim with the 7.25 bolt pattern,we could weld up the holes and drill new ones.with the bigger pattern,we could bulid an adapter.