Since you have a '71, it could be a Dana 30 OR a Dana 44 front differential.
Just curious which one you have and, if an early '71, what your last VIN numbers are.
The one in Quickdrummer's pic is a 30. Are your outer knuckles the same as his, or slightly different? Can't see the diff cover, but that's the all-in-one answer, since there are "hybrid" 44's that came on some EB's with 44 centers and 30/king-pin outers.
We're kind of keeping track of these little tidbits of info. In fact, Viperwolf has a thread in Chat about this right now. Started with a question about transfer cases, then jumped to other stuff like axles.
Thanks
Paul