Here is a question for you. I got an enormous alternator that appears brand new with my truck. I think it probably came off the 6.2 that was in it before. This truck was a 24V CUCV but converted to 12 V with dual batteries. He used it with all sorts of heavy power accessories including winch, lights, slide in camper, and camper trailer. The alternator looks brand new but I have no way to hook it up and test it. The local parts houses only test Voltage output and there are no numbers on the tag. Nada. Completely blank. How can I determine what I have with respect to amperage output? I don't know a single thing about alternators (other than how to tell if they are bad and replace them) or testing them and I have no way to hook it up and run a meter across it. Can you even test max amperage output with a meter? I don’t think so but I don’t know. I'm thinking of making brackets to mount this thing and use it to drive an on-board welder if it packs the juice. Bad Dog 85 K30 CUCV, 350 TBI, TH400, NP205, D60/C14, 4.56 Coming soon: 4" lift, 40" tires, massive cutting, shorter wb and rear overhang.