Product review (5 stars): Hard to believe but....
I fixed my own dryer!  Okay, there were a few extra screws left over, but wow!  When my dryer started squealing I thought I was going to take a huge hit on my bank account, but instead, a friend told me to get this and we dismantled my dryer and replaced these parts and put it back together and it's like new!  It only took a few hours (mostly dismantling and whatever the opposite of dismantling is - remantling?).