Yukon Gear & Axle (YPKF8.8-T/L-31) Standard Spider Gear Kit for Ford 10.25 Trac Loc Positraction with 35-Spline Axle 1 Year Warranty Higher Quality Than OEM Engineered to Fit Specific Differential Applications Includes two side gears, two pinion gears, cross pin shaft, roll pin and spider gear thrust washers