My brother will tell you that once you get in there your only concern becomes getting out.... you tend to forget how "Pretty" the run looks.... LOL
You have a good eye sir.... it's a 79 HP Dana 44 from an F250..... The axle is currently over at my buddies getting the inner C's removed and the tubes narrowed to waggy width along with mounts and a truss. I'll be running all ford F150 from the knuckle out to include the stub shaft. This will take me to approx 61.5 inches wide. In the rear I'll just replace the spacer on my 8.8 for an adapter.
So your running a HP or a LP? What knuckles are you running?
Now, if by some chance you plan you run RCV's you'll definitely want to run the bigger Ford knuckles and corresponding outer parts. (The RCV's don't fit through Jeep knuckles.)