AFTER DRIVING FOR 5 MINUTES A WARNING LIGHT CAME ON FOR THE REAR LOCKING DIFFERENTIAL- NO CHANGE IN THE DRIVABILITY. ABOUT 5 MINUTES AFTER THAT THE COMPUTER STARTED FLASHING DIFFERENT SYMBOLS INDICATING MANY PROBLEMS- THE ALARMS WERE GOING OFF NON-STOP- THEN THE ENGINE WAS SHUT DOWN BY THE COMPUTER. THIS TRUCK IS HEAVY AND I MAY HAVE CAUSED AN ACCIDENT WHEN IT HAPPENED BECAUSE I HAD TO USE ALL MY STRENGTH TO KEEP IT ON THE ROAD AND WENT INTO THE OTHER LANE! IF THIS HAPPENED WHILE TOWING A LOAD ON ONE OF THE MOUNTAIN PASSES I COULD HAVE BEEN SERIOUSLY INJURED OR KILLED- AND HURT OR KILLED OTHERS! FORD HAS HAD BAD DIESEL ENGINES SINCE THEY DROPPED THE 7.3 YEARS AGO AND ARE RIPPING OFF PEOPLE IN THIS COUNTRY- PLEASE DON'T LET SOMEONE DIE OVER A KNOWN PROBLEM. SEEMS CHEAPER FOR FORD TO PUT US IN DANGER BY SHUTTING DOWN THIS ENGINE AND THEREFORE NOT REPLACING THE ENGINE AND COMPUTER SYSTEM. *TR