Based on a similar thread I have going on Wranglerforum, I've discovered that the root cause may have been improper installation of the sway bar links by the previous owner.
They appear to be the Rock Krawler adjustable sway bar links (P/N RK05185) and according to their installation instructions, the bolt is shown installed from the outboard side with the exposed threads facing in away from the wheel. In addition there is a spacer that pushes these threads even closer to making contact with the tires.
However, mine have the retaining bolts inserted from the inboard side and protruding towards the wheels on both the upper and lower connections for the front AND the rear
My guess is that this problem actually had less (if anything) to do with the wheel/tire combination and more to do with these sway bar links and their installation.
My first question is why these spacers are needed - I don't see them included with any of the other sway bar links offered for lifted JKs... In addition, most others show the retaining bolt as a "captive" piece of the assembly, and thus are flush on one side, rather than having a protruding bolt face (or in m case, threads, due to the backwards installation).