I biught the truck in 05 its a 2003 awd ss. I drove it for about 5k miles before i actually noticed a niose that sounds like coming from the front end when turning. I broughtit to chevy because its under factory and they replaced the complete front differntial. After pickingf the truck up it started makingthe niose again after about 500 miles. since then I have had it in the dealer and they have replaced carrier and front pioni bearings . Guess what the niose is still there. Now it howls under heavy accel. about 35mph. I love the truck but now chevy is telling me it is a normal niose when I park the truck or if i where in a parking lots just turning not under a load/ accel the (front end?) growls to an exteremme. they told me they talked to GM technical assistance and that it is normal charateristic for awd. I had it a 2 different dealership around me they keep giving me the bs. Anyone out there expeierence a similiar problem with theres. I love the truck and hate to part with it but the niose is to much for me. I would love to pick up a 2wd ss. Any help appreciated. thanks