So i have an e60, i pick up some rims off of a e39. The rim size is 20s 9.5 all around with 20mm spacers. I got them balanced 2 times, alinement, control arms done, but for some reason my steering still shakes at 60mpg? What could be wrong?

 

The hub bore on E39 wheels is larger than those that came on the E60. You'll need concentric rings to fill in the space gap and then you should be good to go.