Product Details: The Meritor X30 15" x 8.63" Outboard Mount Balanced Brake Drum is the ideal option to make sure you're Ready for the Road Ahead® with superior stopping power and reactive brakes. Thanks to its balanced design and large contact surface area, this brake drum offers an extended service life - while maintaining corrosion resistance. With an ultra-durable one-piece design that eliminates weld seams, this replacement part is the ideal choice for those looking to haul more weight - while also meeting full FMVSS 121 compliance. Manufactured with exact specifications to provide superior performance. FleetPride is your First Click in Heavy Duty®.