ALTERNATOR PIGTAIL PLUG IS NON HEAT RESISTANT THEREFORE SPONTANIOUSLY COMBUSTS. ACCORDING TO AUTO PARTS DEALERS AND DIFFERENT MECHANICS WHO BEAR THIS OUT THAT FORD HAS A CONSISTANT PROBLEM WITH THIS PLUG. NAPA AUTO PARTS WILL NOT WARRANTY ALTERNATORS WITHOUT SWITCHING THIS PLUG IN CERTAIN FORDS. SEEMS TO ME THERE IS A SILENT HAZARD HERE. *AK