Hey everyone, just wanted to update.

So far it's been about 2000 miles since I changed the rear main bearing and she's running like a top. Oil pressure is 50psi on start, usually 40psi at an idle after warmed, and roughly 30psi on a hot day after a lot of driving. I changed the oil and filter after 500 miles with the new bearing in. I use Rotella T6 5w40 with half a bottle of Marvel Mystery Oil every change since this engine sat for almost 2 years before I got it. I'll probably stop using the MMO after a couple more changes since the diesel oil has a fair amount of detergents in it inherently.