Timothy B Thibodaux , LA October 14, 2020 Appliance: LG Washer WM2487HWMA Lg Washer Wm2487hwma / Abweeus: Tub rocking back and forth. Motor rotor turning in back but bolt holding drum not turning indicating rotor shaft stripped check rotor shaft before changing stator position sensor! easy fix. How to replace Rotor Assembly. Changed rotor. Replacement rotor has metal insert on rotor to help reduce stripping of rotor! Check rotor for stripping before ordering and replacing stator position sensor! Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes