PURCHASED A BRAND NEW 2002 JEEP LIBERTY IN MARCH, 2002. AT 8K, WHILE DRIVING AT 50 MPH, REAR END BEGAN FISHTAILING CAUSING LOSS OF CONTROL OF THE VEHICLE. THIS OCCURED ON DEC. 16TH, 2002. WE STILL DO NOT HAVE THE VEHICLE. A REPRESENTATIVE FROM JEEP INSPECTED VEHICLE AND STATED THAT "REAR AXLE WAS NEVER PROPERLY WELDED TO VEHICLE." THIS OCCURED ON THE ASSEMBLY LINE AT THE FACTORY. WE DO NOT FEEL VEHICLE IS SAFE AT THIS POINT.THE STRUCTURAL INTEGRITY IS SERIOUS COMPROMISED. WE'RE CONCERNED OTHER 2002 JEEP LIBERTY'S MAY HAVE THIS PROBLEM.