1986 CHEVROLET C10 Power Trainautomatic Transmission Problems

MY 1986 CHEVY 1/2 TON PU TRUCK CAUGHT FIRE WHILE TRAVELLING DOWN THE INTERSTATE AT 65 MPH WITH ME AND MY 71 YEAR OLD FATHER IN IT. I AM CONVINCED THE PROBLEM WAS CAUSED BY THE TRANSMISSION OVERHEATING AND PRESSURE BLOWING THE FLUID OUT THE DIPSTICK TUBE. AT THE TIME WE WERE PULLING A BOAT (18' PONTOON BOAT) DOWN ALABAMA INTERSTATE 65 SOUTH WHEN WE HEARD SEVERAL EXPLOSIONS UNDERNEATH THE VEHICLE. IT WAS APPROX. 4:45 AM ON 6/18/99. I LOOKED OUT MY SIDE WINDOW AND SAW LARGE BRIGHT ORANGE AND YELLOW REFLECTIONS ON THE PAVEMENT INDICATING A SEVERE FIRE UNDERNEATH OUR VEHICLE (THERE WERE NO INDICATIONS OF A PROBLEM BEFORE THE EXPLOSIONS OCCURRED). WE WERE APPROACHING AN OVERPASS WITH AN 18 WHEELER DIRECTLY BEHIND US AND ANOTHER VEHICLE OVERTAKING US IN THE LEFT PASSING LANE. THERE WAS NO SAFE PLACE (SHOULDER) TO STOP. I PROCEEDED ACROSS THE OVERPASS AND PULLED...