I dont know if anything that wide will fit, its really going to come down to wheel choice too...
Im running 37x12.50s on stock wheels, with a 4" lift, and it just kisses the control arms at FULL lock.
I would think 15.5" tires will probably rub at some point in the turning radius of the wheel.(And forget about it if you try to run less than 5.25-5.75" backspacing, or if you try to run 10" wide wheels)
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