What makes a front axle a front axle is the steering knuckles, not the offset. Lots of rear ends are offset but none came stock on a Jeep with steering knuckles.

The numbers relate to the size of the ring and pinion. The Dana 35 is weak for other reasons, Axle diameter and small spidergears mostly. Generally speaking the higher the number the stronger the axle the 35 is an exception. The Dana 60 is overkill for a SWB Jeep unless you are going for an extreme rig with over 35" tires The difference in ring gear size is huge and causes a loss of ground clearance. + the Dana 60 weighs a ton! <img src="/forums/images/graemlins/cheers.gif" alt="" />