Made of high strength 4140 Chromoly steel alloy, these pins mount solidly, having the same taper as OEM, in an unmodified steering knuckle allowing a Spherical Bearing to be securely mounted on it. We make different sizes of Attachement pins for the bearings we use in our products. You can use these as spares on the trails for any emergency situation. You will not need front end allignmwnt when replacing these pins, if you don't change the settings in your tie rods or control arms. The price is for a pair.