This is a high quality billet steel pitman arm for Saginaw style power steering boxes. These bullet-proof billet pitman arms are used by NASCAR teams on their steering systems. They can easily be fitted to your race car as well as many older vehicles equipped with a Saginaw Steering box. This pitman arm measures 5" center to center and fits the standard 1 1/8" gear box sector shafts. Saginaw steering boxes were used on multiple production vehicles including many vintage GM and Ford applications like the 71-73 Ford Mustang and many years of Chevy Nova, Chevelle and Camaro vehicles. These steering boxes can also be found on Jeeps as well. Please note, that the small end is threaded and may need to be drilled out for use with some traditional pin type center links. If your building your car from the ground up, replacing worn parts or just looking to add a little shine to your suspension, this is a great part.