Mark...You seem to be making great progress,I've been following it on your Flickr page.
I also had some 'issues' with caliper mounts on my MII front spindles.
It seems this is also the case on the upgrade for original axles too.
As you say,a simple label/sticker would avoid such problems....
Good luck with the rest of your build.

1950 Chevy Advance Design 3100 in Scotland
In the Stovebolt Gallery
More pix on Flickr.
I've definately got this truck thing in my blood ... my DNA sequence has torque settings
"Of all the small nations of this earth,perhaps only the ancient Greeks surpass the Scots in their contribution to mankind" Winston Churchill.