Well my husband, who is tone death, can't hear or notice it, but when his Colorado Z71 was new I thought it felt real good on the road. Now at 40,000. During the last 8 or so months I refuse to drive it it sounds terrible. I thought maybe something in the wheels. It has a loud sound like something is rubbing, honestly I can tell what it sounds like but not pleasant. I have a mechanic I trust so he looked at it and drove it and he told me that he is sure it's the tires. It has the original Goodyear tires it came with. At some point we'll have to get new tires and I think I want Michelin's on there cause anyway this truck never goes off road.