Nope, doesn't mess anything up.
I think there is some confusion going on.
GM corporate axles are commonly referred to by the number of cover bolts, 10, 12, and 14 bolts (the GM "14 bolt" is a 1 ton axle).

Dana does not follow that trend.
So while a Dana 60, 70, and 80 all have 10 cover bolts it has no significance.

Pictures and details here for lots of axles http://www.nationwideparts.com/differentials.htm

Grigg

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
---All pictures---
"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-