ELECTRICAL WITH THE TRANSMISSION-A NEW MAIN COMPUTER AND TRANSMISSION PRINDL SWITCH WERE INSTALLED. I STARTED OUT AND HEARD A BIG BOOM. THE INNER PLANETARY TRANSMISSION HOUSING UNIT EXPLODED INTO CHUNKS OF METAL ALL OVER THE ROAD AND SPRAYING TRANSMISSION FLUID ONTO CATALYTIS CONVERTER CAUSING A FIRE. WIRING HARNESS AND RIGHT SIDE OF VEHICLE BURNT.