Quote:
Originally Posted by mylesdw
Does that axle give a higher split or a lower split in each gear?
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Axles (even single axles) have alternative ratios, and, together with a gearbox that has direct top or overdrive will give you a final overall ratio (and top speed).
A two speed axle offers two ratios, but these can be higher or lower than a single speed according to 'choice'.
For a vehicle such as an artic it would be usual to choose ratios to assist hill-climbing, whereas for a rigid (or a coach) the overall ratios would be chosen to provide an overdrive ratio for higher cruising speed.
So the answer is it all depends - but two-speed axles work by having a single reduction (high ratio) and a double reduction (low ratio).