Mark L Alliance , OH February 20, 2017 Appliance: Model WHIRPOOL DUET ELEC DRYER Roller shaft and drum support roller went bad Took dryer apart by matching the video . It was very helpful, replace the bad part and put on a new belt and idler pulley. Cleaned it all out like new put it back together and she work great. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes