Global West’s Pro Vintage kit uses late fullsize car steering knuckles, negative-roll upper control arms with Del-A-Lum bushings, big Wilwood Superlite II four-piston cast or billet (shown) calipers with 1.75-inch od pistons, and 1.25-inch-thick x 11.75-, 12-, or 13-inch-od (shown) ventilated rotors on alloy hubs.