or am i missing something
old wheel



new wheel



the thing with notches on the old wheel appears to be welded as part of the wheel

yes i am being thick its been painted since it was put on

It's a spacer, not part of the wheel.

if you just had your wheel powdered or painted make sure you remove all the excess paint in the locating dowl areas and on the inside the spinde or you will never get that wheel off again.