Ronald S The Villages , FL November 06, 2017 Appliance: Maytag Gas Dryer SDG505DAWW Maytag Dryer Sdg505daww: Thumping noise. How to replace Dryer Drum Support Roller. I replaced rear rollers,front glides ,idler pulley and belt while I had it apart. The cabinet came apart slightly different than the video,but still it was very helpful and it was a breeze. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes