Product review (5 stars): Our dryer suddenly started making a horrible screeching sound a few days ago
Our dryer suddenly started making a horrible screeching sound a few days ago, which sound like a belt to me.  However, upon a quick google search it seemed it could be the belt or bearing on one of the rollers, not knowing what was causing the sound make this kit ideal as it addressed all of the potentially sources of the sound; plus why not replace all the components that could go bad while you have the dryer apart.  In less than an hour, I pulled the dryer apart, changed all the components, had it reassembled, and running as quite as it ever has.