Wilwood's new Mopar 4 bolt to 2 bolt Master Cylinder Adapter allows installation on 1960's to 1970's (CDP) Chrysler / Dodge and Plymouth vehicle of a any Wilwood or other Mopar 'Style' two bolt master cylinder with 3.20" horizontal spacing. Manufactured from high strength aluminum alloy and with a black e-coat finish. Comes with the necessary fasteners for installation of the master cylinder.