Raybestos 2513R R-Line Rear Brake Drums are designed to match OE form, fit and function for the best operation and ultimate strength in braking. Developed from OE samples and made with G3000-qualified material, an advanced technology metallurgy which offers long lasting durability, these rear brake drums are 100 percent validated for balance, assuring smooth and quiet braking. Raybestos R-Line Drums meet the SAE standard for tensile strength, guaranteeing structural integrity and maximum service life for car and truck vehicles that require severe-duty performance.