We decided to run Kelderman's 4-Link Rear Suspension, which will replace the factory suspension with an auto-leveling four-link model that will allow the truck to ride on two large air bags. This suspension kit will give us increased load capability, while producing a more comfortable ride under any condition, loaded or unloaded. The LBMC will auto-level under any load and on any surface. It will also allow the truck to lower the rear end or "kneel," which will make the mundane task of hooking up a trailer much easier on us, as well as make it a parlor trick that will impress any onlooker. We're also going to get the optional air dump with our kit, so when we hit large bumps or the suspension gets a heavy jolt, the airbags will be able to release air quickly for an even better ride. In this article, we'll walk you through what it took to install this kit.