Direct Fit Pickup Upgrade – Designed for 1955-1959 Chevy pickup trucks to replace the original single reservoir unit with a safer dual reservoir master cylinder and frame mount bracket., Corvette Style Master Cylinder – Built to OE specifications and 100% tested with a 1" bore design that provides reliable braking performance for disc/drum or disc/disc brake systems., Dual Side Outlet Ports – Features 3/8"-24 IFF ports on both the left and right sides with plugs included for unused outlets, allowing flexible brake line routing for various installations., Frame Mount Bracket Included – Heavy-duty mounting bracket bolts directly to the frame and allows reuse of the original brake pedal for a straightforward installation., Compact Universal Design – Low-profile body provides clearance for fir.