driving axle vs live axle

driving axle and live axle both are nouns.

Word	Noun	Adjective	Verb	Adverb
driving axle	Yes	No	No	No
live axle	Yes	No	No	No

As nouns, driving axle and live axle are synonyms defined as:

driving axle and live axle: the axle of a self-propelled vehicle that provides the driving power

driving axle (noun)	live axle (noun)
the axle of a self-propelled vehicle that provides the driving power	the axle of a self-propelled vehicle that provides the driving power