Michael I Hopatcong , NJ April 26, 2016 Appliance: Whirlpool Electric Dryer WED9200SQ0 Whirlpool Dryer Wed9200sq0: My dryer was screaming. How to replace Dryer Idler Pulley. Ordered drum supported, belt and idler pulley. Received the next day, lightning fast,door to door. It took an hour to install. Cleaned all the vents before installation. Runs great. Bought in 2007. Whirlpool Duet works well. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes