Chris R South Bend , IN October 07, 2024 Appliance: Whirlpool Gas Dryer WGD4850BW1 Whirlpool Dryer Wgd4850bw1: Squeaking and grinding noises. How to replace Dryer Rear Drum Support Roller Kit. Replaced both drum roller shafts, drum support rollers, and idler pulley. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours