Note: 66-2215 is designed specifically for use on the following 2015-UP F150 trucks: Made in U.S.A – This ReadyLift CNC machined billet aluminum kit was designed specifically for the new 2015-UP Ford F150 trucks. The strut positioning is different on 2015 trucks requiring the development of a new front lift System to lift the front of the 2015-2017 Ford F150. Using the highest grade material available – CNC machined 6061-T6 billet, our engineered developed the ideal front lift System to bring the stance of the new F150 trucks up to a near level position. A exact level stance is not achievable on 2015 4WD F150 trucks due to the geometry of the front CV Axles. 2.25″ Is the safest amount of front lift obtainable on these trucks while retaining the factory ride and geometry requirements. For information about tire and wheel sizes please visit the ReadyLift tire Sizing and Calculator Page. Installation is simple and requires no strut preloading, cutting, or modification of factory installed parts. While other kits cost thousands to buy and hours to install, ReadyLift can be installed one to two hours and costs less than the price of a single custom wheel. Visit ReadyLift on the web for more information. hardware and detailed installation instructions. 9 rated mounting studs CNC-machined billet aluminum construction designed for use on 2015-UP Ford F150 trucks