Update:
I got 7L of fluid but it only took 5.5L like it was stated.
I had the guy from my local INDY do the work on the side. He replaced the fluids in both differentials, transfer case and transmission fluid and filter and he also reset the modules and adaptations after (he has the tool). He charged me $180 in labor and i spent $350 on parts so under $550 for all is a steal
Shifts so much better now and crisp. He said my fluids looked fine, nothing crazy. It has 126,550 on it and all original fluids.