THERE WAS NO EVENT LEADING UP TO FAILURE. THIS WAS TOTALLY UNSUSPECTED. THE FAILURE I EXPERIENCE IN MY 2004 TOYOTA TUNDRA OCCURRED AS I WAS TURNING FROM A SMALL STREET TO A MAJOR STREET. AS I WAS MAKING THIS TURN, THE DRIVER'S SIDE WHEELED SEPARATED FROM THE BALL JOINT CAUSING ME TO LOSE CONTROL OF THE VEHICLE. AS I LOST CONTROL OF THE VEHICLE THE TIRE BECAME LODGED IN THE WHEEL WELL CAUSING MY DRIVER'S SIDE DOOR TO BECOME JAMMED. I WAS NOT ABLE TO EXIT THE VEHICLE USING THIS DOOR. AS OF NOW, THE TRUCK IS STILL IN THE PARKING LOT AT THE DEALER BEING HELD UP BY A WOOD BLOCK. I WAS TOLD BY THE REPAIR DEPARTMENT THAT THE PARTS WILL NOT BE IN FOR A FEW WEEKS. TOYOTA CORP HAS NOT YET CONFIRMED OR DENIED RESPONSIBILITY, ALTHOUGH I WAS GIVEN A CASE NUMBER FOR MY CLAIM. I WAS ABLE TO OBTAIN A LOANER VEHICLE FROM THE DEALERSHIP AT NO COST TO ME (YET), BUT IT WAS LIKE PULLING TEETH!!! *NM