Fitment: 1960-1966 Chevy C10 C20 Truck Descripition: 100% brand new, never been used 8 single Zinc brake booster with zinc Master Cylinder for most small to mid size street rods and customs The booster mounts with a 4-bolt pattern. The 4 bolts are in a perfect square and are 3 3/8" apart (center to center). The master cylinder features a 1" bore and the ports measure 9/16" and 1/2". Mounting Brackets /Rod/Clevis designed for 1960-1966 chevy C10 C20 Zinc Disc / Drum proportioning valve Kit Professional Installation is Highly Recommended .
