I have 295/70r/17 Nitto Terra grapplers on my JK, and the spare will fit on the stock carrier but it will rub against the 3rd brake light andyou'll need to trim those tire bump stops on the tail gate, also rubs slightly on the bumper. I used a terraflex spare tire spacer ($40) which moved the tire up and out, no rubbing issues but it blocks the 3rd brake light. You could also use a wheel spacer to move the tire out, you won't need much 5/8" at most!
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