What year model is each transmission? The actual nsbu will swap over. I had to do this on my truck last week, as my original trans was an 05, and the built trans I installed was from an 02.
Now after this install, the truck was looking for the G solenoid that the older built trans did not have, but a simple retune to an older software on my tcm took care of that issue. Truck runs fine, shifts fine, and no more check engine light.
If you do decide to attempt the swap, be very careful pulling them off as the plastic could easily break. Hope this is close to what you were looking for and hopefully helps!