BFG's tend to run wide.
Bear in mind that all of the measurements on tirerack are taken with the tire mounted on a wheel of "measuring rim width." If you're looking at a 275 tire that they measured on a 10" rim, don't expect to put it on a 9" rim and get the same dimensions.
2002 C5 Z51. MCS 2WNR TT2 coilovers, 18x11 Forgestars, 315's, yada yada. Built Z06 T56. Bolt ons. Coming soon to a CAM event near you.
2013 F150 6.2L. 9mpg.