i have an 06 4runner with the limited package, 18" wheels. went to costco to get some michelins (LTX M/S2) and they said that i can only get some street tires. all this because they said toyota only recommends a street tire with this wheel package do to the suspension. i was hoping to get the LTX M/S2 because of the reviews they r getting. i do do some offroading so i would like a tire that will stand up to the abuse, but i mainly do high way driving. any help or shedding of some light on my dilemma would be greatly appriciated