The MGM Brakes Drum Spring Brake Assembly is designed to provide reliable and efficient braking performance. This assembly features a tamper resistant design with an integral release bolt mechanism to reduce the hold off pressure. The power spring non coil clash design ensures smooth and consistent braking performance. The 20 spring size and 3" stroke provide superior braking power and control. This assembly is ideal for a variety of applications and is sure to provide reliable and efficient braking performance. FleetPride is your First Click in Heavy Duty®.