2004 JEEP WRANGLER, 16,000 MILES ON IT AND THE FRONT END SHAKES VIOLENTLY WHEN HITTING A BUMP OR EVEN A SMALL POTHOLE IN THE ROAD. I HAVE READ REPORTS OF THIS SAME ISSUE HAPPENING OVER AND OVER AGAIN WITH THE DEALERS TELLING CUSTOMERS THAT IT'S "BAD DRIVING HABITS" CAUSING THE ROTORS TO WARP. WARPED ROTORS CAN BE FELT IN THE BRAKE PEDAL WHEN APPLING THE BRAKES, BUT THERE IS NO SHAKING HAPPENING WHILE BRAKING. WHY DON'T MANUFACTURERS "DO THE RIGHT THING" AND FIX THE PROBLEMS. SEAT BELT RETRACTORS NOT RETRACTING PROPERLY OR EVEN EXTENDING OUT WHEN TRYING TO FASTEN THEM IS ANOTHER PROBLEM THAT I ENCOUNTER ON A FREQUENT BASIS.