Gun drilled axles weigh approximately 2.5 pounds less than solid axles. These axles are made from certified Hy-Tuff material, heat treated and CNC machined. Fits most Quick Change and Ford 9″ floaters. Used to reduce rotating weight, our axles are designed to withstand severe and high torque conditions. They are drilled from the spline end to within 2-1/2″ of the opposite end to maintain the strength of the axle and so have less chance of axle twist or fatigue break than a fully drilled axle.