Product review (5 stars): Solved my vibration woes...now the dryer is as smooth as a sewing machine!
Well, I don't really LOVE it, since how can anyone love a dryer fan. However, this is just what I needed to make my machine run as smooth as a sewing machine.

It previously vibrated quite a bit. I mistakenly thought it was the drum rollers, and ordered a replacement kit before checking. The rollers were fine, but I changed them anyway. I was at a loss trying to figure out what the issue could be. Then I pulled off the the fan cover and was looking at it when I noticed one of the blades was chipped out. It didn't seem possible that this little missing plastic fan blade could be the cause of the vibration but it was. I guess the missing blade throws the wheel badly out of balance, and since this wheel spins at several times faster than the drum, it causes quite a racket.

I wanted to buy local, but they wanted $50+ for this part. This part will fit many different dryers by the way (many different brands....mine was a Whirlpool Duet.)