i know of mechman, singer, tuff stuff, and dc power. I also have heard of 2 more brands JSAlternators, which i dont know much about. Then there is Tucson Alternator (TAE Electrical), have heard a few good reviews but I dont know if its enough to get me to pay for something that expensive from them. I am looking at an alternator around 320a possibly.
Anyone have experience with any of these?

 

bueller?

 

the terminator guys seem to like mechman overall. I've used power bastards on our super duty.