The BTF Adapter (Split-Washer) for High Steer Arms arms are CNC machined from cold-rolled steel.? They were deigned to the same specifications as the stock GM part so they can be used with stock steering arms also. The side of the cone is spit on a mill to allow the adapter to crush to the diameter of the bolt and create the strongest joint possible.? You will need 3 of these parts for each Dana 44 arm you purchase.? Sold individually.