Hate to be the one to break it to you, new driveshaft time.
Ford stopped making them over a decade ago.
Not a serviceable part.
It was 2011/12 when my 08 limited needed one (had 200k+), Ford didn't make them and there wasn't anyone making aftermarket ones yet. I ended up having one custom made, cost me over 1k, just for the part, and that was over 10 years ago.
Aftermarket availability only, but at least they are available now. Not unreasonably priced either, at least compared to what my custom one cost me years ago. Here in Canada they are around $550CAD.
Find them on Kijiji or eBay.
As I recall, not a tough install either.