DESCRIPTION --Applications: For Pontiac GTO & Lemans 1964-1972 For Oldsmobile 442 & Cutlass 1964-1972 For Chevy El Camino & Chevelle 1964-1972 For Buick Skylark 1964-1972 For Chevy Monte Carlo 1970-1972 For Chevy Nova 1969-1974 For Chevy Camaro & Pontiac Firebird 1967-1969 --This is a single diaphragm booster. --It has a beautiful zinc finish. --This booster will work with drum/drum, drum/disk, and disk/disk brake setups. --11" Power brake booster. --This is an original factory copy done in zinc and looks amazing for your show car or weekend warrior. --This will power any type of brake system. Firewall brackets are non-removable. --We highly recommend you purchase the booster and the master cylinder from our store together, which will be perfectly compatible with each ot.