My winter car has 95K with an original alternator. I'm thinking of rebuilding the alternator when it's retired for the summer. It seems I can do it with the $50 kit from this web site. Alternator starter rebuild kits They have good video tutorials, and the pictures they show of the worn copper rings makes me think my alternator may be close to being consumed. The last time I though about doing both starter and alternator with another car, I thought too long and the started conked out and I had to do an emergency repair in 11°F weather. Checking rockauto, the alternator for my car varies from $80 for the inexpensive all the way to $250 for OEM. I've been stranded before more than once with a bad alternator. Is this a good plan? Has anyone done anything like this?