The Gunite 15" x 4" Outboard Mount Brake Drum is the perfect addition to your braking system. Made from high-quality cast iron material, this brake drum is designed for outboard drum mounting and provides excellent stopping power. With a drum's overall depth of 8.79", you can be sure of an accurate fit with your braking system. The mounting flange thickness is .5", ensuring a secure and reliable fit. Plus, this brake drum reduces brake noise compared to lightweight steel shell composite brake drums. Upgrade your braking system with brake drum and experience the difference in performance and reliability. FleetPride is your First Click in Heavy Duty®.