Russell P Worcester , MA February 12, 2018 Appliance: General Electric Refrigerator GTS18GBRERWW Ge Refrigerator Gts18gbrerww: My freezer sounded like grinding rock's. How to replace Lid Bumper. I ordered the part's needed to replace the evaporator bushings, fan,motor, foam duct and bumpers. Removed inside of freezer and back panel. Replaced parts and reassembled. Total time was about 1 hour. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes