
The number of revolutions a vehicles driveshaft makes for each revolution of the vehicles drive axle(s).
Found on
http://www.edmunds.com/glossary/

axle ratio The ratio of the rotational speed of the drive shaft to the rotational speed of the drive wheels in an automotive vehicle.
Found on
http://www.wordinfo.info/words/index/info/view_unit/266/

The ratio between the rotational speed (RPM) of the drive shaft and that of the driven wheel. Gear reduction in final drive is determined by dividing the number of teeth on the ring gear by the number of teeth on the pinion gear.
Found on
https://www.encyclo.co.uk/local/22334

The final drive gear ratio created by the relationship between the ring and pinion gears and the rotation of the driveshaft. In a 4.10:1 axle ratio, for example, the driveshaft will rotate 4.1 times for each rotation of the axle shaft (wheel).
Found on
https://www.encyclo.co.uk/local/23310
No exact match found.