most alts when you secure it to the block it grounds it from the case, and most alts where you put the ground wire on that post and secured it is usually for a power wire, and of course the wiring harness connection. Dont know what kind of alt you had or installed do you have pics of it??? Maybe you didnt install it right, not saying you didnt but sounds like it may have been why it seemed to be doa.not to rule out a mechanical installation error, but literally the only hook ups on the alternator are the three bolts that secure it to the block, the ground which goes over a terminal and a nut secures it, and a harness that only plugs into it in one specific way. so im pretty confident it was installed correctly //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif
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