what's your question? what axle you have? or just what those numbers mean?
can you post a picture(s)? either way it'd be a lot easier if we all knew what axle it is..
I posted some Dana stuff here
http://67-72chevytrucks.com/vboard/s...48&postcount=8
there's a chart in there and many other places on the interwebs to help you identify it..