Certain Chevrolet and GMC trucks can be difficult to bring into proper alignment specifications using ordinary alignment hardware. Perform that alignment more accurately with less hassle with the upgraded and redesigned components in this Dorman OE FIX caster/camber cam bolt kit. Unlike typical alignment hardware, the patent-pending cam plates in this kit are infinitely adjustable rather than stepped to allow a much more precise alignment. The inner surfaces of these innovative cam plates are knurled in a crosshatch pattern for maximum grip on the control arms, secured by an included bolt with a special rust-resistant coating. An innovative deformed ovoid fastener, not a garden-variety nut, helps ensure the plates stay exactly where they're supposed to after alignment. Cam pins are included for a complete, frustration-free job that can significantly extend the period of time even the hardest working trucks stay in correct alignment. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet Colorado: 2015, 2016, 2017, 2018, 2019, 2020, 2021] - [Chevrolet Silverado 2500 HD: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [Chevrolet Silverado 3500 HD: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [GMC Canyon: 2015, 2016, 2017, 2018, 2019, 2020, 2021] - [GMC Sierra 2500 HD: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019] - [GMC Sierra 3500 HD: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019].