Happily was one of the 'test mules' of this new item from JLR Products, LLC, back in March of 2016.
The neat thing is it is operated solely by the Ford flywheel magneto. No gears, cables, or other stuff. Just two terminals, ground and magneto.
Here were my test photos, in the '23 with 30 3 1/2" clinchers, and in the '27 with 21" balloon tires, each have std. rear axle ratio 3:63.
Using GPS speedo app to test the output. This new speedo/tach is spot on!
'23
'27 So yesterday, after years of being a pest to John, got delivery of commercial unit #1, and installed in the the dash of Dixie, the '27 touring. Have had a hole there filled by an un-operable water temp gage that gave out after a few years from mounting.
So, now can check my speed in school zones, and state parks, or how fast others are passing me by on tours

Can run safe speeds in the dark too, illumination from the dash lamp
