I BOUGHT THIS TRUCK NEW AND AFTER A FEW MONTHS NOTICED WIND NOISE COMING FROM THE TOP OF THE DRIVERS DOOR AND FROM THE PASSENGER DOOR ALSO, THE TRUCK HAS BEEN BACK IN WITH THE DEALERSHIP FOR THIS ISSUE SEVERAL TIMES, THEY HAVE REPLACED THE DOOR SEAL ON THE DRIVERS DOOR, BUT IT HAS NOT CORRECTED THE PROBLEM, THE WIND NOISE STARTS AT SPEEDS OVER 40 MILES PER HOUR, AND GRADUALLY GETS WORSE THE FASTER YOU DRIVE, CHEVY TECS DO NOT HAVE A SOLUTION FOR IT, BUT HAVE MENTIONED THERE IS A ON GOING PROBLEM WITH THE MIRRORS ON THIS TRUCK.