?

The manual for my Atlas 10" says a sleeve is provided to go from a #2
Morse taper to a #3 Morse taper. I know little about machining and so I
don't know if this means I could buy a #3 Morse dead center and directly
put it in the headstock spindle and eliminate the sleeve. Would I be
able to do this, or could there still be some problems in the taper of
the bought dead center not matching like it should to the taper in the
headstock?
Stan