DougW proclaimed:
I dunno, I manage to get thru the alkali snot over in Nevada with the M+S pretty well without burning out any transfer case or differentials yet. Haven't tried Montana dirt road bubbles or red clay with them tho. Work great over Donner as long as I stay the hell away from folks who think 4wd==4wheelstop.
Mine tend to sing a bit on the sharp pebbled type roadbed compared to the All Season that rental Explorers use--that are OK on rain but wouldn't care to take them over Donner in the winter.