THE POWER STEERING PUMP PULLEY POPPED OFF THE PUMP SHAFT AFTER A BLOWOUT OF THE LEFT FRONT TIRE ON MY 2002 FORD F250 DIESEL PICKUP TRUCK. THE PULLEY APPEARS TO BE PRESSED ONTO THE PUMP SHAFT. I SUSPECT A PIECE OF TIRE TREAD HIT THE PULLEY OR EXCESS STRESS CAUSED BY THE BLOWOUT CAUSED IT TO POP OFF THE SHAFT. THE RESULT IS AN IMMEDIATE LOSS OF STEERING. I AM INTERESTED IN KNOWING IF THIS HAS HAPPENED IN OTHER SIMILAR VEHICLES. THANK YOU, THOMAS HUEBNER *TR