Dryer squeals while running

I wanted to know why my dryer was making such an ear-piercing screech. Googled, and found Steve at PartSelect. After watching the 10 minute video on how to replace the rear drum bearing, I knew this was something we could do at home. I ordered the parts on Friday and they arrived on Monday. Also ordered a new drum belt and drum glide. Didn't know if we would need those parts, but figured while we had the dryer apart, we might as well replace them. My husband watched the 10 minute video the following Saturday, and together we replaced all 3 parts. The original bearing was small enough to fit through the hole (which it shouldn't) and metal shavings we all over the plastic holder. The large metal ball attached to the dryer had grooves worn into it. The kids we amazed, too! I can't believe the repair was so easy! Seeing the inside of the dryer makes me wonder why they cost so much! Do not hesitate to make this repair yourself. Even just one person could do it.