Bobby K Benton , KY January 08, 2016 Appliance: General Electric Electric Dryer DDE7900RALAA Ge Dryer Dde7900ralaa: It was making a grinding noise when first started found problem to be drum bearing and drum belt was scredded. How to replace Idler Pulley. Replaced both items ,it would have been easy if I had longer arms for putting on the new belt. I replaced the belt,drum bearing and drum slides Do-It-Yourself Rating: Repair Time Estimate: 2+ hours