The Power Products Slack Adjuster is the perfect solution for enhancing brake performance and shortening stopping distance. This durable slack adjuster is designed to withstand all conditions and accurately read the shoe-to-drum clearance when the brake drums are at their coolest. The positive lock mechanism is protected from rust and corrosion with plating and shaft sealing, while Belleville springs provide a clutch preload that won't fade over time. FleetPride is your First Click in Heavy Duty®.