OER Parts offers a wide selection of Brake Components for your 1969 GMC All Models. OER Parts offers 1969 GMC All Models Conversion Kits, 1969 GMC All Models Drum Brake Kits, 1969 GMC All Models Drum to Disc - Front, 1969 GMC All Models Drum to Disc - Rear, and 1969 GMC All Models Four Wheel Disc.