I've had a chance to look at the new belt and tensioner. There appears to be plenty of range at this point. I will keep closer tabs on it as time goes by.
Over the past couple of weeks my daughter has started seeing the dreaded intermittent battery light problem. Happens at highway speed and at stopped idle. Cleaned up the battery and checked all connections to the alternator as best I can. The voltage looks ok to me as being 12.8V prior to start and 14.8V while running no load. With the A/C and blower, head lights, cooling fan all running it drops to 13.0V and then settles in at 13.3V. Goes back to 14.8 as soon as I shut down all of the accessories. Going to schedule a day to have her come over so I can just replace the alternator and pigtail. It has 140K so figure I might as well do both since I need to remove the alternator to get decent access to the pigtail and wiring harness.