Todd L Wichita , KS August 19, 2016 Appliance: Maytag Gas Dryer MDG9700AWW Maytag Dryer Mdg9700aww: Drum roller retaining ring failed due to being plastic. How to replace Drum Support Roller (Dryer). Replaced with new roller that unfortunately comes with plastic retaining ring. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes