James V Lomita , CA November 05, 2018 Appliance: LG Dryer DLGX7188RM Lg Dryer Dlgx7188rm / : Dryer drum support was making noise. I determined it was a support roller. How to replace Dryer Belt. Ordered all 4 rollers and the dryer belt since I might as well replace all while the dryer is taken apart. I looked at some youtube videos and completed the repair on a Saturday morning. Now it is quiet and works well. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours