Speed is bad for tire failures out there, as well as the wrong tires, some in our group have had tire failures, due to inadequate tire specs, load range B tires do not cut it at all out there, despite looking like a great offroad tire, they aren't, personally I won't run anything but 8 ply tires with 3 ply sidewalls, the tacoma doesn't like 10 ply, a lot of the tire failures are from sidewall cuts, the tires with 3 ply sidewalls are much heavier tires at around 50 lbs per tire versus 35 lbs or so for a lesser tire, but havn't affected my mpg, I run BFG TA/KO's, usa made, the only other option I know of usa mfg is General X3 tires they are three ply sidewalls and usa mfg, china mfg tires are also responsible for a lot of tire failures. You get what you pay for in tires. You can pay now or pay later.