This 4x4 spindle is a genuine OEM part for 73-87 Chevy GMC trucks. It is designed to fit perfectly without the need for drilling and comes with a cotter pin hole. This vintage part is made in the United States and is suitable for control arms, ball joints, and assemblies. The spindle is manufactured by Chevy and is also known by the OE/OEM part number GM. It is not a performance part and is not intended for universal fitment.