Loose key in rear axle

[Richard Knight]

Dave, you might want to refer to a thread started in October 2020 by Bob where tapers were discussed. The keyways and keys wear because the mechanical joint of the engineered locking taper has failed most likely by improper tightening of the axle nut. If you would review that thread you might learn about tapers or Google taper fits. It appears Bob has not come to understand how locking tapers work.