Replacement Standard Open Spider Kit For Dana 60 With 30 Spline Axles Yukon Gear & AxleYukon uses higher quality materials and better techniques than OEM to ensure a longer lasting spider gear set. Details: Spider gear kit Fits Dana Spicer 60 open differential with 30 spline axles Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers 1 Year Warranty Against Manufacturer Defects Sold As A Kit Fits Vehicles: Chevrolet C10 1 2 Ton (2WD) (1967 1972) Chevrolet C20 3 4 Ton (2WD) (1964 1972)