Originally Posted by Lariatryder
So the name of the axle is specific to the housing only? It does not specify gear ratios or axle spline numbers?
No it does not specify ratios or spline counts, the number after "Dana" does however coincide with the types of, and if I'm not mistaken the circumference of the axle-shafts themselves. Ex. The Dana 44's shaft is going to be larger in diameter than that of the 30. And the Dana 60's shaft, bigger than the 44s. There are various ways of increasing the strength of your axles without upgrading to a bigger one, chromoly shafts, axle trusses, ect. But if your aim is for big tires (bigger than 35's) you should at least have a D44. (stock on the rubicon(front and rear))