Fordification site axle info

[pjtoledo]

this site has axle codes, like you can see that S391B is an 80-84 7.5 locking 3.73
it's only a partial copy/paste, much more info there.

Ford Rear Axle Assembly Identification - Page 12 - FORDification.com

 

[JoshT]

Was this supposed to answer a question posed elsewhere?

I haven't seen a "code" on any of my axles that matches anything in that list, and it doesn't match the warranty tag either. It's an interesting list, I just don't see what good it is outside of a factory settings ng.