I pulled the tub to make sure nothing was wedged in it and cleaned the filter,replaced the 4 spring supports,f 51 is rotor position sensor code,replaced stator it had large cracks in it, also replaced sensor and wiring that came with kit,thanks for all the great videos, my next washer will be a speed queen, getting the tub out was the hardest,my machine is real old, i used a 2/4 and jack to pull the tub, good luck to everyone you can do it, rob san diego