my point is that it is an issue. Be it a slight vibration or a cup falling out of the cup holder. there's no excuse for justifying ANY vibration in a truck that cost near 50k. I'm sure Gm is hoping ALOT of people think like you. ANY vibration that there all the time will cause premature wear of driveline, suspension and steering components. Maybe you will buy into there bs that some levels of vibration are within limits but not me. Ive owned to many chev trucks to know that this isn't the norm for them. Somethings wrong and Gm needs to address it. Let me ask you this. Gm in there great wisdom has determined that oil consumption isn't considered excessive unless your using more then a quart every 1000 miles. If your NEW truck was using a quart every 1500 miles would you sit back and except and believe that's really normal??