LOWER BALL JOINT FAILURE OR SUSPENSION DEFECT. I ROLLED IN A JEEP LIBERTY 2002 2 WHEEL DRIVE, TOWING ACCORDING TO SPECS. ON THE MODEL. DRIVING THE 25 MILES BELOW THE SPEED LIMIT, SLIGHT SWERVE TO AVOID AN OBSTACLE IN THE ROAD,HAD NO CONTROL OF THE STEERING AND FLIPPED THE JEEP 2 TIMES.