Just a wild shot here, anyone have a 7.5MM halfshaft spacer lying around?

It is the spacer used to shim out the halfshaft to adjust camber in
the rear.

Part number cbc480675

It's not on the part. It is simply identified by thickness.

here's one at Terry's Jag:

Cbc480675

 

If you don't find it, I might be compelled to pull them off this latest part out and check!

 

I can order it at the local dealer network who are very proud of the value of
every single part they sell. Just being thrifty