That charger has the 73+ brakes. Those are slider calipers. Rotors are uni-cast (not 2 piece). In 1970 the caliper would be front mounted. Definitely not a factory setup, but factory STYLE.
That 68 on Cardomain is also the 73+ brake. before 1970, b bodies used a 4 piston setup like an A-body, iirc.
