maybe YOU arnt listening. you tried other alts then stepped up to a 250amp alt. the more amperage the alt, the harder it is to turn. then bam, belt slip. what do you think could make black rubber come out of the alt??? its was the belt dude. these guys are right. they arnt "trying" to look smart, they know what they are talking about. you just bashed a company that did everything right. sorry you dont like that you are wrong but we all are wrong some times.