Original Motorcraft is still in my truck and it's a 2001.
FWIW the Motorcraft is manufactured by Johnson Controls (so are half of all batteries out there)
The EverStart Maxx at WalMart is made by Johnson Controls - and if you compare them side by side - yes they are the exact same battery...
I have a sneaking suspicion that the stock Motorcraft batteries in the F-350 are spiral cores.