8.8, 8.25, then Dana 44. In that order.
-8.8- you have to cut off/weld on brackets but you can find them already geared 4.10
strongest axle out of the 3
-8.25- bolt in, you might can find one already with 4.10's, you can find replacement shafts EVERYWHERE
both left & right side shafts are the same length, therefore you only need to carry 1 spare,
weakest out of all 3
-XJ Dana 44- bolt in but hard to find from a XJ, most are 3.55's so you need to re-gear, shafts are different
lengths so you'll need to carry 2 spares, TJ shafts are the same
not as strong as a 8.8 but stronger than a 8.25