i needed to get some space between the upper control arm and the new tires I bought .
tires are nitto mud grapplers 33x12.5x20's and a 1.5 front level kit .
I ordered a set of custom made hubcentric spacers cost was $90 plus shipping.
this is who makes them -- http://www.motorsport-tech.com/
I talked to Junior
3/8 is the smallest that they make due to the thickness of the lip on the factory rotor.
if your rotor has never been replaced or taken off you will have to remove the 2 aluminum washers with a pair of needle nose pliers.
I only did the front for now because I wanted to see what it looked like and if they were the thickness I needed.
after installing the spacers , I turned the wheels all the way in both directions and they don't hit the sway bar , upper control arms or anything else. But I am sure if I went off road they might hit .
click on the picture to play the video