IMO, a dual nitrogen charged (using Icon or Bilstein shocks) steering stabilizer setup is a big improvement on 05+ trucks.
Icon is the cleanest looking setup with the billet clamps that they use to secure the shocks to the tie rod.
Other options for a little less coin are the Rize and BDS brackets.
Also, Bilsteins are cheaper than the Icons.
BDS Dual Steering Stabilizer Kit - 2005-2008 F250/350 4wd - Steering Stabilizers - Truck Toyz Store
Rize Industries Dual Steering Stabilizer Bracket Kit - 2005-2008 FSD 4wd - Steering Stabilizers - Truck Toyz Store
Icon Vehicle Dynamics 2005-2008 FSD Dual Steering Stabilizer Bracket Kit - Steering Stabilizers - Truck Toyz Store
Hit the "Configure" button to add the shocks.