Richard S Pioneer , CA April 07, 2020 Appliance: Kenmore Refrigerator 59675523400 Kenmore Refrigerator 59675523400: Left upper door was difficult to close. How to replace Mullion (Gry). Replaced the rail mullion and pivot block. The door operates like new now. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes