Tie Down Complete Drum Brake Installation KitKit comes with everything needed to replace trailer drum brakes. New Model 660 drum brake actuator features a cast ball clamp, Drop N Go auto coupler latch and oversized master cylinder. Includes pair of GlavX coated drum brakes and painted drum hubs, drum brake actuator and brake line kit. Fits 13", 14" and 15" wheels. DOT 3 brake fluid not included.