VIOLENT SHAKE THAT MADE ME FEEL LIKE THE JEEP WAS GOING TO FALL APART...EXTREMELY DANGEROUS AND UNSAFE...THIS HAPPENED ALL OF SUDDEN...I DID NOT HIT ANYTHING TO MAKE THIS HAPPEN...CHRYSLER NEEDS TO DO A RECALL SINCE THIS HAS HAPPENED ABOUT 15 TIMES SINCE I PURCHASED THE VEHICLE LESS THAN A YEAR AGO....IT DOES IT EVEN AT 55-60 MILES PER HOUR... I HAVE TAKEN IT TO SEVERAL MECHANICS TO BE FIXED...JOINTS, BARS, SHOCKS, AND TIRES HAVE BEEN CHANGED NUMEROUS TIMES AND IT CONTINUES TO SHAKE VIOLENTLY. *TR