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The sidewall rating on my E-rated Firebombs is 80 psi. No apparent "crown" of the tread.
Never under-inflate Firestones, but 25% over-inflate is no big deal.
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2000 Ford F-350 SC 4x2 6 Speed Manual
4" Slam
3.08:1 gears and Gear Vendor Overdrive
Rubber Conveyor Belt Air Dam
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