JCL,
Very well written, as per your usual efforts!

You may be howling at the moon, however...

DblOh is on a mission; I suspect a bum tire or two
in his current batch, or was that the problem batch(es)?
I took notes and still couldn't keep the "tire test" straight.

I did not know that XDrive, transfer cases, diffs, and trannies
were so "smart"?!
BR,mD