How to find or where to buy alternator belt

[dmjlambert]

When I got my truck I bought and quickly went through v-belts that were thin and stretch easily and were generally cruddy. The Autozone and O'Reilly store brand belts are pretty much glorified rubber bands. I had one that lasted about 1 week before completely falling apart. Then I switched to Gates belts which are much better. Now a year has passed and the belt is starting to chirp when I start then engine up from cold. Cold around here means 65 to 75 F. After the truck warms up, the chirping goes away. The belt is adequately tightened. So, I'm thinking about getting a fresh belt. My question: is there a better belt? I would like to get one that is robust and that fills the v-groove, and is just plain no-foolin fantastic, better than Gates.