The new parts photograghed will greatly improve the reliability your 9" LSD has always needed. No longer will you ever suffer having a cracked & broken carrier cover plate, or a worn out thin axle side gear spline or a sheared off axle spline end. Because what we have manufactured makes the standard ford componentry obsolete. Our LSD carrier cove plate is made of high tensile steel, it will not crack, unlike the standard S.G. Iron cover plate. The thin 5/8" long (wide) standard ford LSD axle gear has been redesigned to be 1-3/16" long, so that the full width of the axle gear will connect to the axle spline, saving expensive axle and side gear replacement. The new axle gear has a 2" splined journel that will spline fit inside the specially manufactured clutch hub.