Front Disc Brakes for GM A, F X-Body and Chevrolet Fullsize Cars Complete ... drum to disc brake conversion kits. Single-piston cast iron calipers, 11" ... , pads, hoses and hardware. A, F X- Body kits include spindles; fullsize kits ... bolt to stock drum brake spindle. Power kits have 9" booster. Requires 14" x 7" or ... wheels. A123 Non-power, 1967-69 F-Body, 1964-72 A-Body (Olds see below), 1968- ... 74 X-Body . . . . . . .$759.99 A123-1 Power, 1967 ... -69 F-Body, 1964-72 A-Body (Olds see below), 1968-74 X-Body ... 869.99 A123-3 Non-power, 1962-67 X-Body* . . . . . . . . . . .$759.99 A123-4 ... Power, 1962-67 X-Body* . . . . . . . . . . . . . . .$869.99 ... Standard Front Disc Brakes for Classic Mustang, Ford Mercury 4-Piston Kits Complete ... drum to disc brake conversion kits. Includes 4-piston cast iron calipers ...