When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
It mounts exactly the same so yes, it will fit. The pinion flange may even fit, last one I arranged to get shipped to someone was from a 2011 and he didn't have to change the pinion flange to fit his 2007 V6 driveshaft.
273 is probably what you have right now. I forget the year the V6 auto went to 331.
For 2011 and 2012 I believe 331 was the lowest gear the factory had...?
Ford released 2 stock rear ends with the '12, 2.73 or 3.31, and those are the 8.8 rear ends so you get a much stronger rear end as well, thoroughly inspect that rear-end, because that person doesn't know he could probably get 400-500 out of it by selling to someone who has an older s197 so there is either something wrong with it or he is just clueless.
Even just for the axle $50 isn't bad. You can just buy gears for it and have them installed for about the same or less as buying a used axle with gears.