Hello, quick question I have a 1987 Dodge ram 50, I bought about 3 months ago well I was under the hood yesterday just inspecting to make sure everything looked good when I seen that my alternator was crooked causing the belt to wear and make an awful noise and not be aligned so i started looking at the alternator to see what was going on it appears the previous owner had put a bolt that is way to small in the bottom mount of the alternator and a bunch of washers with a nut on the end. So i went to go to autozone to see about getting the right size nut and bolt and the guy at autozone says it should only be a bolt that threads into the engine?? Am I missing something when I look there is no where for a bolt to go into? It just goes through the first tab mount thing on the alternator then through the mount on the truck then through the other hole on the alternator and there is nothing behind it?? IDK please help pics, advice, anything thanks in advance

Dave350