The closer in your wheels the less stress on your axle and ball joints.
I have a 4.5 backspace and on turns (lock to lock) I have barely any clearance. If I went to a 5.2 BS then I would rub on the frame. I have not modified my steering stops.
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2014 JKU, JKS lift,Poison spyder flares, bombshell covers,Rancho D2 control arms, JKS adjustable track bars, 35" Tires. GrabBars, Crawler Conceptz rear bumper, Smitty front bumper, Winch. Rough Country inner fenders, Teraflex Disco Mud Flaps
Backseat Dobermann Security