This listing is for a Brand New Ford Dual Bail Top Master Cylinder. Brand New Zinc Bail top master cylinder. This master cylinder is the Bail Top Style & has a 1" Bore. Mounting holes fit standard OEM Ford booster bolt patterns. This works great for most drum/drum, disc/disc or disc/drum applications. This is a two port master cylinder. This is a great upgrade over a standard Ford single bowl master. Fitting Size 3/8 and 1/2 inch Direct Ford Fit May Not Fit Aftermarket GM and other Boosters