BATTERY NEEDED TO BE JUMPED OFF. JUMPED OFF BATTERY AND THEN DECIDED TO GO AND PURCHASE A NEW ONE. WE WERE DRIVING DOWN THE HIGHWAY AT 60MPH, FLAMES AND SMOKE STARTED COMING UP OVER HOOD. PULLED OVER, PARKED AND JUMPED OUT AND STARTED THROWING ITEMS OUT OF VEHICLE. CALLED 911, BUT BY THE TIME THEY ARRIVED, THE TRUCK WAS TOTALLY ENGULFED. IT IS A COMPLETE LOSS.