I ended up going with 1.250 heims (same as my duff radius arms) with .250 wall dom tube for the track bar, all the mounts are .250 also, Im sick of messing with the track bar after every other trip so I figured I would way overbuild it this time. The last one had a bend to clear the diff but thats where it bent the last few times so the new one is straight. I had to move it way up to clear the diff when everything is compressed. Another problem I have to figure out are the bump stops, the drivers side will have to have a striker plate right off the side of the diff to hit the stop...