Disc Brake Conversion Kit, Front 6-Lug, 1947-59 Chevy, GMC 3100 Truck Disc Brake Conversion Kit, Front 6-Lug, 1947-59 Chevy, GMC 3100 Truck Disc Brake Conversion Kit, Front 6-Lug, 1947-59 Chevy, GMC 3100 Truck