Ensuring you are Ready for the Road Ahead™, the Webb 16.5" x 6" Outboard Mount Balanced Brake Drum is regularly inspected and improved for ultimate efficiency and thorough accountability. Made with top-of-the-line cast iron, this brake drum boasts long service life and reliability. Being designed, cast and machined to all applicable industry standards, you can expect extended durability and great heat dissipation throughout the long lasting life of this brake drum. FleetPride is your First Click in Heavy Duty®.