The inner tub mounting hub was corroded. I couldn't take the hub nut off so I had to chisel it out. In the process I damaged some of the threads of the hub. The new hub nut could not go on! I had to re-thread the hub but nobody could tell me what the thread pitch was, even called GE and they did not know or couldn't tell me! I figured it out myself and bought a 1-1/4"-12 left hand die and fixed the threads. Put it all back together and the washer works like new.