I a going to go Dana 60 Hunting today and I dont want to sound like I have not been reading the other posts on 60's because I have. Still a few things have me confused though. Somebody mentioned that it has to be a closed knuckle Dana 60, what is the difference, and how can I distinguish it, when looking for one. What else do I need to look for to make sure it's the right one? I am bolting it under my 80 K20. Any help would be great.