8.25 rebuild - Any tech advice?

i dont have really anything to add besides im getting ready to build my 8.25 also....
27 spline suregrip with 4.11s
stock axles for now--- (but may grab some jeep 8.25 yukon HD axles to be cut to length at a later date)
LPW Ultimate cover

-- i wanted to ask what you achieve by studding the carriers caps ?