PST Drop Spindles are designed to lower the vehicle, improve handling and maintain the original ride quality of today’s trucks. These Spindles maintain factory suspension geometry, eliminating excessive ball joint, shock, and tire wear. To assure safety, each spindle is built from high strength ductile iron; spuds are made from 4140 heat-treated chrome-moly. Our high quality Spindles maintain original ride. Order from PST and you'll receive our exclusive Lifetime Limited Warranty!