I used body shims to shim it away from the backing plate. But you are right after looking at it again with the size tires-and the drop axle i am going to need to move both steering arms out a little. But I think I found my problem- When I replaced the 4 bolts that hold the brake drum to the axle I think I used smaller O.D. size on the shank of the bolt sooo. I think the weight of the truck in turns is moving it back and forth. Can anyone find out what is the correct bolt I will need to re-place these with-thanks