The parts in this kit are manufactured by Dana/Spicer so they are not only OEM quality parts, they are OEM parts. These are the stock spindle nuts & washers that come from the factory on vehicles that came equipped with manual hubs. Vehicles with automatic locking hubs that have 3 screws holding the chrome cap on must use this kit to convert to manual hubs. This is mostly limited to 1995 - 1997 Fords with factory automatics, but could include others. This kit is equivalent to the Warn part number 32721 spindle nut kit.