1980-2005 Dana 50 Standard open spider gear kit 30 Spline (YPKD50-S-30)Yukon standard open spider gear kit for Dana 50 IFS with 30 spline axles. Yukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. All components come with a one year warranty against manufacturing defects. Features Spider Gear Kit Fit Dana Spicer 50 open differential with 30 spline axles Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers Application