Yes this might seem like a newb type question but I did search. I really only need one answer. I got an 80 K-5. I looked at the Tech section and it says Dana 44's were up front until 77. It says they used the 10 bolt starting in 83. Now I looked close at mine and I noticed it has a drain/fill plug on the front of the diff cover. Does this mean I have a D44? anything else to look for. Trying to figure out what I have. Speaking of this question might want to throw a sticky somewhere with real pics of the differnt axles we all have?????