Product review (5 stars): Fixed my squeaky dryer, Super easy fix!
After 2 hours of taking my Whirlpool dryer apart and figuring out what was wrong, this little fella stopped the squeaky grinding sound that ranged from annoying to deafening.  Complete repair for 1/4 the cost of just the trip fee from the appliance repair man.  Once the part arrived it was a 10 minute fix.