One of the drum support rollers was worn out resulting in a loud screeching noise when the dryer was in use.

Read the instructions included with the parts, removed the 2 screws on the front of the dryer. Removed a couple of wire connections and 4 screws that held the drum in place. Moved the drum enough to have access to the roller supports. I removed the nut from the back of the supports with a 1/2" wrench. Placed the new supports on the old support pins and reinstalled them. Put it all back together. Probably the most difficult task was getting the drive belt back on the drum correctly. I was done in just over 1 hour.