Product review (5 stars): Maytag deum roller
My Maytag gas dryer was making so much scraping noise and I found out that the problem was the drum roller.  I just got on the web with Amazon and put the serial number of my unit and found the correct parts which showed that availability was sure.  The rollers arrive and I installed it and the unit ran like new again.  The parts came came in a pair but I replaced just the bad one and kept one for spare.