Mark D Posen , IL July 22, 2016 Appliance: Whirlpool Gas Dryer WGD6200SW0 Whirlpool Dryer Wgd6200sw0: Noisy when running. How to replace Drum Seal. Removed front and drum and old belt cleaned inside unit as needed.Replaced idler assembly and felt seal that seemed worn. Install new belt on drum and replace drum and reassemble as needed. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes