[scottb]

If it's a reputable shop, you don't need to ask anything. They'll have gone thru the alternator and repaired or replaced what was necessary. Of course, if you can speak to the person who actually did the work, you might ask what was done. The bottom line, from my perspective, is that a business wouldn't survive for 30 years under the same ownership if they did shoddy work. I'm sure you'll get a quality rebuilt unit that will work fine.