I got Rancho adjustables which have worked very well improving the ride. Many on the Ford diesel website have also changed to these and haven't seen any complaints.
Front: 999042
Rear: 999047A
The Rancho website will tell you the rear's aren't for your truck but they are a perfect fit. I think these are listed for the 16's and below but from what I've read Ford did not change the shocks with the 17 models. For some reason Rancho has not updated their website. I set mine at 4 for empty and 7 for towing. I highly recommend them. A little more pricey but worth it. I also recommend changing all four.