William V Cleveland , TN April 18, 2018 Appliance: Frigidaire Laundry Center FEX831FS4 Frigidaire Washer Dryer Combo Fex831fs4: Dryer gradually made constants screeching and grinding noises unbearable. How to replace Screw (8-18 Thread). Swapped out the nylon bearing cup. Easy. Also changed out the felt bands on the dryer door edge. Even easier. Be careful taking the cabinet apart as the inside edges are SHARP !! Also removed and added new exhaust tubing as the existing one was filled with lint. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes