ReadyLIFT now offers a great solution for 2016.5-UP GM 1500 truck owners who want to level trucks with stamped steel suspension. In 2016.5 GM went to a stamped steel upper control arm that is not suited for use with leveling or lift kits. The factory stamped steel control arm has no ball joint support or locking ring to secure the ball joint. GM has stated that no leveling or lift kits should be installed on new model GM 1500 trucks. At ReadyLIFT our engineers have developed a fantastic solution. We no offer heavy-duty DOM tube steel upper control arms with reinforced joint cups and features our proprietary spring loaded 1-ton ball joints. Additionally these new arms include our ALL-NEW pivot bushings that are absolutely the best on the market today. These new inner pivot bushings provide unrestricted free float are non-binding self lubricating and completely maintenance free! If you have a leveling kit on your stamp steel upper control arm-equipped GM 1500 truck and want to insure you will never have a ball joint or control arm failure the 67-3500 UCAs are the arms for you! We also offer there arms with our 66-3086 leveling kit that includes 2.25" of front leveling with these 67-3500 control arms. Fits 2016.5 to current GM 1500 trucks and SUVs that came with Stamped Steel upper control arms. Will also work on 2014-2016 GM 1500 trucks that came with factory aluminum control arms Unsure of what control arms you have? www.readylift.com/blog/2017/07/11/upper-control-arms Read this to learn more.... www.youtube.com/watch?v=25YlarcEg28&t=3s Watch This Video To Learn More