A few months back I changed out the "Bearing Slides" on the front side of the drum thinking that would stop the annoying squeaking every time we use the dryer. They were very worn and one was missing. But to my dismay it only lessened it by about 10%. After doing a bit more research I discovered the "Rear Shaft Bracket Assembly" also needed replacement. The tip was worn way down and clearly the source of the noise.
It was actually a very simple repair except for the fact that the key to the disassembly was a hidden screw behind the "Selector Knob" and the only hint I found was a poor quality video on YouTube that revealed this secret screw. After that it was a piece of cake. The hardest part of the repair is spreading the "Double Idler Wheels" to get the belt back on the motor pulley.
Someone needs to make a pro video on these type machines. There are plenty of videos on the "White Box" type washer/dryers but these machines are a bit different, at least on getting them open.
PS The whole family appreciates the "New" quiet dryer.