Just a thought...
Maybe research what gear ratio the Titan front diffs came with, see what would work for you and then build a nice 9" Ford rear axle to match?
When Ponyboy in CO had his next gen SASed (first one done so), he reported that the 9" proved to be a great fit for his ride. They are plentiful, beefy and have a plethora of great parts, lockers, axles, etc. available.
Just a suggestion.
Hi Bobby!
Yeah I thought about that - great suggestion but I don't want to give up my speedo, VDC and ABS. Greg (PRG) says his Titan's (who's axle is swapped) dash is always lit up like a christmas tree and sometime the ECU freaks out and shuts the engine down when it doesnt get any counts. The Nismo M226 will let me keep all of those electronics and allow me to get it locked whilst keeping it all Nissan. The other thing is I can keep my bolt pattern.