Product review (5 stars): Plan on replacing the blower wheel, belt, and idler pulley, all at the same time. Saves you from taking it all apart again.
This application seems to be the only place where everyone says that you don't need to replace the belt.
Basically, if the belt falls out of your machine and is lying on the floor, dead, you may actually need to replace the belt.
I don't care, I did it anyway, since the belt is cheap and I had to take the machine apart 4 times, trying to find my problem.
My final solution was to replace the blower wheel for a noisy dryer. After 23 years, the BLOWER WHEEL NEEDS TO BE REPLACED!
You'll see why when you look at the cheap plastic fitting on the metal shaft, that wears down to a perfectly round hole and doesn't fit right anymore.
Pay attention to where the belt sits on the drum and which side is against the drum. It is a bit tricky getting it back on. Check out YT for a video.
You probably want to just buy the blower wheel, belt, and idler pulley, all at the same time. I replaced all three.
Amazing how, after 23 years, I spent less than 30 dollars to repair my Maytag dryer that gets used every week and still keeps going.
Too bad you can't buy that quality any more.