ON CERTAIN MEDIUM DUTY VEHICLES, THE RIGHT SIDE STABILIZING ROD, WHICH SPANS THE COOLING MODULE AND THE RIGHT FRAME RAIL BRACKET, WAS INADVERTENTLY DESIGNED TOO CLOSE IN PROXIMITY TO THE ALTERNATOR POSITIVE ELECTRICAL TERMINAL POST. IN THE EVENT THE PROTECTIVE RUBBER BOOT ON THE TERMINAL POST WAS REMOVED OR CRACKED AND THE ENGINE MOUNTS ALLOWED THE ENGINE TO ROCK, ELECTRICAL ARCING COULD OCCUR BETWEEN THE RADIATOR TIE ROD HARDWARE ON THE FRAME SIDE AND THE ALTERNATOR TERMINAL POST WHILE THE ENGINE IS RUNNING.