Bearing Socket Size

[CatMan1]

If I should get brave enough to attempt to check the bearings and the drain tube to hopefully fix my previously mentioned rear main leak, what size sockets does it take for the main bearings? What about the rod caps? I hear they are unusual. I'm trying to think of everything that I need and get it lined up before I dig in. When I was younger I did rebuild a '55 Chevy straight 6 so I have had 'some' experience even though every engine is different!