Monica H Maxton , NC June 28, 2020 Appliance: Kenmore Dryer 79681722000 Kenmore Dryer 79681722000: I had a loud squeaking and thumping sound. Turned out to be 2 of my rollers were bad. How to replace Idler Pulley Assembly. I replaced all 4 drum support rollers. Works like a new machine, didn't take long to replace rollers, while I had the dryer disassembled. I really cleaned all areas and it was really worth it Do-It-Yourself Rating: Repair Time Estimate: 2+ hours