FRONT WHEELS AND STEERING BEGAN TO SHAKE AND VIBRATE VIOLENTLY WHILE MAKING A RIGHT-HAND TURN FROM A STOP AND AFTER ACCELERATING TO ABOUT 40 MPH. VIBRATION STOPPED AFTER BRAKING TO ALMOST A STOP. SAME SYMPTOMS OCCURRED TWICE MORE AFTER HITTING SMALL BUMPS IN ROAD AT BETWEEN 50 AND 60 MPH AND AGAIN STOPPED AFTER BRAKING. DEALER SAID THEY DUPLICATED THE CONDITION AND REPLACED STEERING DAMPENER AT 35726 MILES BUT VIBRATION HAS OCCURRED ONCE MORE SINCE REPAIR. I HAVE OWNED THE JEEP SINCE NEW AND IT IS COMPLETELY STOCK WITH NO MODIFICATIONS AND ORIGINAL P255-75-R17 TIRES WHICH WERE AT PROPER INFLATION. TIRES HAVE ALSO BEEN CHECKED AND DO NOT HAVE ANY DAMAGE OR ABNORMAL WEAR. *TR