Hmmm...I'm with Brian on this
A "Live axle" is a driven axle - like the old Escorts and Cortinas - an axle that is one piece - normally with a diff in the middle
Would the rear (driven) axle (that does not rotate) on the yellow go kart, in the video that I posted previously, be considered a "Live axle"?
...or another example
Bicycles, minibikes & motorcycles all ride on axles
...are their rear (driven) axles (that do not rotate) considered "live"?