like the title says newbie here, i am a regular on a few svt sites(insert boo's and hisses) first post here and i have a question for you guys. i bought the suburban used this spring, a 2002 LT with almost every option i think. anyways it was very wet out and i had a ton of leaves so i decided to throw it into 4hi and punch it...with the new tires it just stuck i took off. i went to make a u turn, slowly and i felt this real bad shudder. it doesnt seem to be as pronounced on left turns as it is during right ones. now the only other 4 wheel drive car i have ever driven in 4wd is a jeep and it didnt feel like that. i posed the question on another forum and said that i should never put it in 4hi unless i am in snow/mud and that it is normal. to me if felt like it was slowing the car down and just not right(i know real technical). anyways i thought i would ask you guys, other than this i have had no problems and love the car, except for the gas mileage but i knew that coming into the purchase. only mods so far are a drop in K&N and some new tires, yokoham geolander h/t-s. thanks for any and all replies