Just wanted to thank everyone here who posted their discoveries regarding the very loud vibrating noise coming from their dryer, especially MrWrongsAlive. After reading all the post, I knew what to look for when I opened up my Frigidaire dryer. And sure enough, there were two cracks in the blower wheel right were it screws onto the motor shaft. With the aide of a how to video put out by "Repairclinic" I was able to remove the old blower wheel housing and install a new one. Also, greased the bearing and cleaned it up real good while I had it open. Put it all back together, and it runs smooth and quiet just like new! Thanks again guys!! You were an answer to prayer!!