[KTL]

The biggest job of splitting the case IMO is the cleaning. The rest is very simple if you're just refreshing bearings/seals and throwing it back together.

The bearings don't get any easier to install. You place them on the case saddles and the notches self-align them. Rod bearings are easy too. The critical part of the rod bearings is your rod bolts- proper torque and stock bolts cannot be reused.

In terms of reassembly of the bottom end, you need to do some trial assembly to make sure you have everything in order when it comes time to actually seal it up. A practice run of organizing all your nuts & bolts & seals and parts (don't forget the chains on the intermediate shaft and the o-ring on the #8 nose bearing......) is well worth it to make sure you don't have to crack open your freshly sealed case and do it all over again.