The factory suspension components on your 2004-2007 Super Duty has probably seen a lot better days, but you can easily give your tough truck a refresh in handling and performance with just a few Super Duty Suspension Upgrades from Stage 3. These parts can give your 2004-2007 F250 & F350 back a comfortable on-road ride with improved handling and add excellent off-road performance so that your Super Duty can hold its own when you head off the beaten path. Ford Super Duty Fitments: 2004, 2005, 2006, 2007 Ford F250 & F350 6.0L Submodel Fitments: FX4, King Ranch, Platinum, Lariat, XLT, XL Some Exceptions apply, please see individual product pages for specific fitments.