Well, after alot of fabbing, cussing, and headaches, I am finally done... haven't posted on here in forever, lol.
I decided not to go with dual cases, so I pulled out the pass-drop axle I had under the truck, and put in a mid 80's style waggy axle (with driver's drop). Then, I used a cherokee driveshaft, and just cut it to length, welded a 1310 yoke on, and it worked perfect with the nissan flange.
So, I have been doing a little playing down here by my house in Tucson, but lookin to go wheelin soon. Any locals wanna hook up w/ a *gasp* Nissan?
I am selling the old axle, check the auction thread.
