damn, i bet they bow out pretty bad on yours, because i have the same size in Nitto's on my rear but they're on 7.5" wheels and they bow out quite a bit on mine
i was thinking that since the tire has to bow up and back in to the wheel that its losing some contact with the ground, look at it from behind the tire with your head close to the ground and you'll see what im talking about,
anyway, that size really looks meaty on a 15" rim doesnt it
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88 Notch, B&M Ripper, 3.73's, Ported E7's, Explorer int. w/ ported lower, pulleys, 1.7RR's, BBK headers, off-road H-pipe, flowmasters, subframes, 65mm TB, March ram air ,MSD coil, U/L control arms, 155lph f/p, Crane Adj.FPR, Nitto drag radials, best 1/4--> 13.76@101.4 on a 2.17 60ft