R5 Triple Tree...

[AAAltered]

Need some additional eyes on my Triple Tree.  It's all disassembled:
1) The R5 triple has all-balls installed. 
2) I have the original style races and seals off the RD triple that came on the frame.
3) I'm trying to install the original style races off the RD triple onto my R5 triple.

Is this stepped part on my R5 triple part of the original, or is that a slip on race for the all-balls that used to be on here?

I cannot slip the ball race all the way on without heat and pressure right now, although it appears to be very close to the correct OD for the ball race.   Anyone have an R5 triple a part for reference?

Stepped part of the stem:




Race almost fits on:





Here they are side by side.  RD on the left and R5 on the right...