I wish we had this for big aircraft, using a push/pull gage while hanging out the side window with one toe hooked under the pilots seat is getting old!

I do have a belt tension gage, for my Harleys drive belt. Wrong tension and they eat themselves and the pulleys, gets expendy!

1956 GMC 370 dump " 'Tater "
1970 VW Volksrod "the Black Bomber"
2007 Chevy Avalanche
2020 Jeep Cherokee Trailhawk,
2005 Harley Davidson FLHTCUI

I dig all cars, old and new, whether they were hammered out of American iron, German steel, or Japanese tin cans. Being unable to appreciate them all is missing out on a world of great things.
But thats just MY opinion! :P