The 2519 Belltech Drop Spindle is built to improve handling and retain factory ride quality. In addition to the ride improvements, this direct bolt in solution maintains critical suspension geometry and eliminates excessive ball joint, shock, and tire wear that is found common with other methods of lowering. Factory alignment is also preserved without any modification. This spindle can also be combined with coilovers, lowered struts, or air suspension for an even more aggressive drop. Every Belltech spindle is built from OEM grade high strength ductile iron, providing the structural integrity to meet and exceed all factory specifications & requirements. Belltech also releases a 2″ lowering shackle for the new 2019 Silverado and Sierra 2WD & 4WD. This lowering shackle allows you to achieve a 2″ drop with ease as a result of this direct bolt-in lowering solution. All new hardware and installation instructions are included to make the process even smoother. The new 6416 Shackle kit is the perfect affordable solution to getting your desired drop and the improved look for your vehicle without having to sacrifice ride quality or factory load capacity.