ReadyLIFT's classic 3.5" SST Lift Kit has long been one of the most preferred methods of lifting a Super Duty truck. For the 2017-2019 Ford Super Duty 4WD DRW (Dually) we now have a 3.5" kit for you! ReadyLIFT designed this 3.5" Lift kit for DRW (dually) owners seeking a rugged and durable lift kit. Our dually (DRW) specific lift solution features new lift dual rear wheel-specific rear blocks and u-bolts. The 69-2734 2017-2019 3.5" DRW SST lift kit features heavy-duty fabricated steel coil spring spacers with sound isolators a heavy-duty OEM-style cast iron front track bar relocation bracket and fabricated steel radius arm drop brackets. This great new system for DRW Super Duty trucks includes everything you need to get the lift job done right without cutting any corners. This kit includes sway bar drop brackets bump stop extensions brake line extended brackets and shock extensions so you can retain use of your factory shocks. This kit will allow for 37" tall tires which is a great size for this lift. NOTE: The lift blocks in this kit are not designed to work with aftermarket or factory add-on air spring/load leveling kits that attach to the bump stop tangs. Use of this type of air bag system will void all block warranties and can cause failure of the block bump stop tang. NOTE: Not compatible with TREMOR editions. Compatible with F350 and F450 DRW