I'm trying to figure out the Shimano's creatively minimalist (

) directions on the 8speed hub, and However I try to do it, I get lateral slop with the sprocket.
Is there supposed to be a spacer both below AND above the sprocket? If so, how would you get that spracer out again??? If not, what is that extra spacer for???
I hope it's for the roller brake--I'm not using it.
This'll probably be obscure to many, so any help is MUCH appreciated.