Upper door hinge: do I need this part?

That's a first for me I assume it is sandwiched between the solid part of the hinge and the stamped part.

If it is removed will there be slop?

Hmm, yeah, now that you mention it, removing that part would definitely leave a gap, vertically. See, that's why I ask questions here, because someone will think of the obvious things my tired brain has somehow missed. :)

Oddly, those hinges were from a set of '72 Duster doors, and I have a spare I pulled from a '74 Valiant, and it also has that part.

I guess I'll go ahead with these, and if there are issues, I'll search the local yards for others.