OER 153649C Features:

These brackets are designed for adding an aftermarket master cylinder/booster combo to the firewall on 1964-72 Chevelle / GM A-Body Models, 1967-69 Camaro/Firebird, 1968-74 Nova / GM X-Body models. Each bracket is manufactured in stamped steel and zinc plated for long-lasting dependability. This is a direct bolt-on bracket that can be used with most 4-bolt aftermarket brake boosters with 3-3/8" square bolt pattern.