Coming across the desert this morning from Lake Havasu, my right rear tire had a side wall melt down.
I am running Michelin LTX A/T and the right rear was the best in the bunch. Used to be my spare until I swapped it out after scrapping the sidewall on my old RRT offroading in the Angeles Crest. Not sure why it blew, I was running 75mph, had 38psi in all four tires. I bought the truck used, a 99 XLT with auto hi low, and don't know how old the tires are. The rest have over 3/4 tread the blown was a brand new spare that was never roatated into the mix until I came along.
I am glad I didn't end up upside down :roll: now debating on replacing my tires with a good onroad offroad, or replacing one tire.

isn't 38psi high for those tires? my michelin CT Radial X's list the max as 35. and if i remember my high school chemistry correctly pressure and temperature are directly proportional so i definately hope that 38psi wasn't the cold tire pressure.

41 cold is the max, they are sitting between 36-38 cold
local tire store told me it appeared to be loosing air which caused sidewall failure