This 4 in. Lift for the 2023 Ford Super Duty F-250 and F-350 4WD is achieved via engine specific coil springs to ensure the proper lift height and maintain factory ride quality.? Radius Arm lowering brackets are used to restore proper caster angle/alignment.? Other Components included with the 4 in. system is: front compression travel-stop relocation brackets, track bar relocation bracket, and a steering stabilizer bracket.? The rear lift is achieved with an HD fabricated rear block that allows the removal of the stock block.? This fabricated block also allows for proper pinion and axle angle all while reducing axle wrap. Complete your 4-inch Ford F-250 | F-350 with the best variety of shocks on the market.? Shocks for this kit are available in the following: Superlift Shocks | Bilstein 5100 Series | Fox Performance Series 2.0 IFP Shocks | Fox Performance Series 2.0 Remote Reservoir Shocks | Superlift Edition King Shocks with a front coilover conversion and adjustable rear reservoir shocks.