Thanks Mike.
After further inspection. It turns out the alternator is ok afterall. Looks like someone changed the bottom alternator mount bolts and they wouldn't tighten all the way down. With time the fan belt came loose and thus my alt wasn't spinning properly. No spin, no charge. Took everything apart , swapped out the bottom mount bolts and buttoned everything up. Seems like it's working fine now. We'll see how she behaves tomorrow. Thanks everybody.