Ernest B Amboy , IN May 26, 2025 Appliance: Whirlpool Electric Dryer WED8200YW0 Whirlpool Dryer Wed8200yw0: The idler pulley seized up causing the drum belt to wear in to. How to replace Drum Drive Belt. I replaced the idler arm and the drum belt. Your videos, explaining how to replace these parts, were very informative for me to accomplish this repair. Thank you Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes