I am seriously considering doing this swap soon and wanted to compile all the information out there into one thread. If i pull the trigger on this I will make this into a "how-to" thread as I do the swap. I found a 96 explorer in the junkyard with the 3.73 limited slip and only 100K on the odometer so seriously tempted to go get it for $250. Just need a pick up truck and a friend 
This is the best thread out there that I can find about the swap:
https://www.vintage-mustang.com/threads/8-8-rear-end-in-71-mustang.1188868/
https://www.therangerstation.com/tech_library/Explorer8_8.shtml
The current thought is to use an adapter on one side to get the correct length as opposed to pulling the axle tube and swapping axles.
For anyone who has done this, I will take any tips, tricks, or advice from your swap!

This is the best thread out there that I can find about the swap:
https://www.vintage-mustang.com/threads/8-8-rear-end-in-71-mustang.1188868/
https://www.therangerstation.com/tech_library/Explorer8_8.shtml
The current thought is to use an adapter on one side to get the correct length as opposed to pulling the axle tube and swapping axles.
For anyone who has done this, I will take any tips, tricks, or advice from your swap!