After looking in this tread the last few month I though I will give in update on my truck. Z71 5.3 4.42 gears 2wd 24000 miles to date I drive a lot for work lol. Got it in February after about a week it started to vibrate at hwy speeds. Took it in same stuff that everyone has heard here before. After multiple balances and road force I decided take it somewhere else on my dime. After talking to two shops I bought new tires nitto crosstrek 265/65/18 size the same that was on their. Help a little but that was not the main vibe. Call gm today they got me a hold of another dealer in my town. That im taking it to next week. After they find me a loaner truck to drive. I hope they will work with me more than the last. the last dealer i have bought 3 trucks and 2 car from them in 7 yrs plus what my mom and brother has got from them . never had a problem till now blows my mind. Good luck guys
