If your cutting the axle tube, you may want to look into cutting it more toward the carrier as the bearings are in the end and that is where most of the weight is biased to, does that make sense? I sectioned mine about an inch from the carrier thinking there would be the least amount of sheer force there. You can also use the axle as the jig to weld it back together as well as using a piece of ID pipe to back the weld joint for more sheer force protection.
