Product review (5 stars): Works well for do it yourself types
My dryer started making loud squealing sounds.  A little Google research said that I needed to replace the drum rollers and possibly the belts, so I bought this inexpensive repair kit.  Found a video online that gave me step-by-step directions on how to replace the old rollers and belts with the new ones in this kit - if you have even basic do-it-yourself skills you can do this easily.  Took a couple of hours but when I was done putting the dryer back together the squealing sound was gone.  Easy, cheap alternative to paying hundreds of dollars for a repair man to do this for you.