WHILE DRIVING VEHICLE ABOUT 35 MPH WHEN SHIFTING THE VEHCLE FROM 2 SPEED TO 3 SPEED THE TRANSMISSION EXPLODED WITHOUT A REASON, RESULTING IN A FIRE. THE VEHICLE WAS NOT HOT AT ALL, AND THE TRANSMISSION HAD A HOLE ON TOP. SERVICE DEALER SAID THEY HAD TO WAIT A FEW DAYS TO FIND OUT WHERE THE PROBLEM WAS STARTED. *AK