If you've been looking to put an aggressive on your 2011-2018 Chevy Silverado or GMC Sierra (2500HD and 3500HD DUALLY models only), you've just found the perfect solution. The ReadyLift 69-3411 kit is a complete lift kit for your truck that comes with everything you need to not only lift your truck up, but more importantly maintain factory ride quality and safety. The ReadyLift 69-3411 kit comes with forged adjustable torsion keys and strong tube steel upper control arms. The 69-3411 kit also includes CNC-machined differential drop spacers, which 4WD models will need (2WD trucks will not use this part of the kit). These drop spacers lower the differential and correct the front CV axles back to a safe factory angle. These are included at no extra charge. Heavy duty tie rod steering assemblies are also included to keep everything at the proper angles and spacing to maintain factory ride quality. The oem assemblies are notoriously weak and if not replaced when lifting these trucks can often break or cause other issues. The rear of the truck is lifted 1" with cast iron oem style lift blocks and elongated coated u-bolts. The part number for this Ready Lift lift kit is 69-3411 and it fits 2011-2018 Chevy Silverado, GMC Sierra 2500HD 3500HD 2WD and 4WD (ONLY Fits Dually) trucks. You will achieve between 3.5 and 4" of front lift and 1" of rear lift when installing this kit. You can use up to a 34" wheel/tire combo without any rubbing when you install this lift. Note: Installing this kit will require the use of new longer front shocks. You can purchase the ReadyLift shocks above for an additional fee, or purchase your own aftermarket shocks to use in conjunction with this kit.