Washing machine beat itself to death during spin cycle

Removed front cabinet, removed 6 springs holding tub down, removed pump hose, removed drive belt from motor,lifted tub out the top and placed upside down, loosened all six hex bolts(did not loosen or remove drive pulley) backed all six bolts out and left 4 threads showing, slipped old snubber out cleaned all surfaces with alchohol and slid new snubber in. Put corn starch on base where snubber rides, lifted tub back in, hooked up all six tension springs with auto brake tool.put belt back on...done..no more beating itself to death.