I found a great date correct alternator for my car. It failed the local pep boys test. What are my options? Can I buy a rebuild kit? Recommendations?

thanks
Scott

GM alternators are easy to rebuild and the parts are cheap but if you don't feel confident doing that buy a reman and swap the front housing from the correct date coded alternator onto it or have yours rebuilt by someone who knows how to do it. .

not hard to rebuild

Where is the best place to get parts? Do the sell entire kits?

thanks

Where is the best place to get parts? Do the sell entire kits? ...

Yes, you can buy a full kit to rebuild it.
Try - http://www.alternatorparts.com/502_kit_contents.htm

Also look for folks that do complete restoration and rebuilds if you want it to look really nice and function correctly.
There are a ton of them listed on sites like Hemmings.com ...