The BOM pretty much has final say, unless it's ever been modified of course. The good news is that its a full float. I'd still try to find the axle housing stamp. It might be bottom right, and sometimes you have to scrape the paint a bit to make it show through. I only say that because Ford built a bunch of vans with Dana 70 housing and Dana 60 internals. That's how mine was built. So it was an easy carrier swap to the 10.5" Dana 70 ring and pinion.
2000 E450 dually V10 wagon