Well, I think I have it fixed, again. I bought another new belt and it seems to have stopped squealing. I drove it up and down the expressway for about 30 miles and it's still quiet but the day isn't over yet. What I don't get on this project is every time I think I found the source of the noise I'd change the part, the noise would stop and then a hour or day later the noise would start up again. You'd think if I didn't replace the offending part the noise would just keep on going. It's next to impossible to figure out what part of the belt system is the offending part, everything blends together under the hood.
I've never seen any of those fix-it shows spend any time getting parts and supplies for their projects. Sure, they'll got to the local big box store to pick out their new cabinets or lawn equipment but once they buy it they never, ever have to take the numerous drives to pick up parts they forgot or parts that don't fit or break. Same thing with the car shows. The only time they don't have the correct parts is in the last ten minutes of the show when they have to have their obligatory last minute issue. They all show you how they build stuff with all the fancy tools and factory supplied parts and huge crew of workers, nothing close to how it really is. I spend more time going back and forth to the store than I do actual work.