Product review (3 stars): Hard to install compared to the plastic version
I have used two different types of these couplings on a 110 washer, at different times. The old full plastic and this "improved" metal-ring version. This one (of which I ordered from Amazon and received an original Whirlpool part) was difficult to install because it required a lot of force to get it on the transmission spindle. I had to use a metal rod and really hammer away at it. I was concerned I might damage the transmission but I left enough room for the washer to move back as I was hammering. Getting it on the motor spindle was easy though it just required a few taps.

In the future I will seek out the full plastic version if I can find any left the next time this breaks. The reason is 1) I really don't like hammering away at the transmission or motor, and 2) the full plastic ones are machined EXACTLY to the right tolerance so you can just slide them on. Then they wear out over time... either the hole that holds the spindle wears down or one of the legs will crack and break off. According to the amazon reviews on this metal ring one it is not exactly improved, since although it prevents the hole from wearing many people report the metal ring just coming right off which isn't any better since the result is the same.