JJ Husker
Donor
I’ve done it probably 6 or 7 times with no problem other than being a pain in the a$$ working under the sink.
I bought a Waste King because that’s what the lumber yard had.
This one has a large rubber gasket that slides on the bottom of the drain. Then, the disposal is supposed to slide up and lock onto the ring.
Problem is, the gasket doesn’t allow the disposal to fit into the lock ring.
I'm not sure why all the other manufacturers don't do them like Insinkerator. Other than working under the sink in an awkward position which usually sucks and gets worse with age, it can be so easy.