Well, hopefully the drive shafts are different on the front end. My guess is they are in that they have different PNs for the t-case output shafts. That, and given how the pinion dia/splines are greater on the SR axle, leads to the conclusion that the front end is beefed up as well.

And the reason I say hopefully is that I took the shaft parts to the shop this morning. I beat on the u-joint and couldn't get it to budge much. He had the same trouble and they have a new U-joint coming in tomorrow. So between the flange/remnant shaft, the u-joint (non-EOM), and the labor to install, I'm most of the way to the price of an SR shaft from a yard.

Should have it on the road tomorrow. Only thing after that is tracking down another control module.