Cadillac Escalade Transfer Case Break in?

I have a 2002 Cadillac Escalade 6.0L automatic

Question:  I just installed my Midwest rebuild Ifs front differential and wanted to if I needed observe a break-in period? 

Answer:   There isn’t a real break in period but it is a good idea to change the fluid in 10,000 miles or so and then every 30,000 after that