Standard Open Spider Gear KitFor 8.25 in. GM Ifs (Awd & 4Wd Models) Yukon Gear 16124 (YPKGM8.25IFS-S) Features:Yukon Gear & Axle spider gear kits feature higher quality materials and better manufacturing techniques than OEM to ensure a longer lasting spider gear set. Kit delivers everything needed for a complete and proper spider gear set replacement.Includes two side gears, two pinion gears, cross pin shaft, cross pin bolt and spider gear thrust washers.Fits GM 8.25" IFS frontSpider gear kit.