Loud, piercing screeching from dryer

I followed others instructions on this site to disassemble but felt confident since 2-3 years prior I had replaced the felt top/bottom guides around the drum and the drum belt. The video on this page is also helpful

1) Pop the top with a putty knife
2) Unscrew two screws that hold the front onto the dryer frame
3) Lift front from two clips at bottom of dryer
4) Release tension from belt (unscrew/remove rear access plate)
4) Lift drum up and forward out of dryer
5) Unscrew drum bearing 3x screws from inside of drum
5) Remove the drum bearing holder
6) Pre-thread the rear drum bearing!!! Very important. Thread by screwing a supplied screw slowly through the pre-drilled holes.
7) Attach drum bearing
8) Attach new rear holder/cup & ball bearing (ball bearing goes on outside of plastic cup)
9) Use lots of supplied grease, espeiclly helpful that it acts as a temporary glue holding the ball bearing in place
10) Reverse steps to assemble

I'm glad I bought the entire rear bearing kit as I found the bearing holder had completely worn through and partially melted the metal cup. The ball bearing was missing - gone!

Also found that the power cord had partially melted, so I replaced that from the hardware store. Scary.