This assumes that the Ecoboost version isn't just a engine swap - it could be that Ford uses everything the same from transmission back, and just pops different engines and badges on. I don't know if this is true or not, though.
For instance, on their old Ranger pickup trucks (basically rebadged Mazdas), the rear axle on virtually all of them was way over-engineered vs the rest of the pickup:
https://www.therangerstation.com/stock-ranger-specifications...
While there were some differences between models, most of them used one of two sizes, and they just dropped a different engine and transmission in. In this case, depending on what you had, you might end up breaking other parts before the axle gives (the Ranger axles are a popular swap upgrade from the Dana 30 axle on Jeeps, due to it's robustness)..