Where to get Mopar/Miller inclinometer (u-joint)

Hey all, I was wondering if anybody knows where to get the Miller made U-joint inclinometer part number 7336 or C-4224.
They are referenced in Mopar Action HERE.
I called Miller and they told me they were discontinued for a cheap Chinese bubble level...no thanks.
I've searched everywhere and have Ebay searches saved if any pop up there.
Just hoping one of you tool gurus may know of a source.
Thanks!

I follow the suggestion of the Ford truck manual and use the adjustable protractor head from my machinist combination square set. Measure the angle of the driveline with the bubble and then the angle of the output shaft (or first driveline of a 2-piece driveline) and then calculate the difference.

Starrett, Brown & Sharpe, and Lufkin are the most common USA brands you find at flea markets and on CL. Mitutoyo is the best foreign brand.