Edward S Milwaukee , WI August 02, 2017 Appliance: General Electric Washer WJRR4170G1WW Ge Washer Wjrr4170g1ww: Loud clanking noise during agitation mode shifter failure (four flashes on led indicator). How to replace Washer Tub Lock Nut. Replaced the mode shifter, seal, hub nut, split washer. The hub nut was difficult to remove even with the 1-11/16 inch hex spanner wrench that is needed. Using penetrating oil and sledge hammer. It would not budge. Then using a Dremel tool with small circular cutting blade for metal, it was easy to cut off a chunk of the nut (about 1/3 of the hex nut circumference, up to the shaft of the mode shifter}. This exposes the cross-section of the nut and easy to then drive CW to loosen with chisel and small hammer. (Choose the appropriate cross-section face of the nut to loosen, remember, it's a reverse thread). The split-nut may also break in two pieces-- cheap part, so just order anew one along with the mode shifter and hub nut. A replacement seal is provided along with the mode shifter, so don't bother trying remove the old seal by prying around the circumference which could gouge the hub affecting seal. Just pull it out easily with pliers to grasp it through the center hole. Clean up the hub surface for a good seal. The AppliancePartsPros videos are excellent! It makes it so much easier to confidently take on a project to save a washer from scrap. I supplemented the videos with a written numbered list of the sequence with numbered small plastic bags to hold all different hardware to make reassembly easy in reverse order. The washer is as good as new, and so quiet again. GE washers with the mode shifter are so quiet in operation compared to other models with conventional transmission. 80 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 2+ hours