Product Details: Make sure you're Ready for the Road Ahead® with fast and responsive brakes, with the Meritor X30 16.5" x 7" Outboard Mount Balanced Brake Drum. To keep your vehicle on the road longer, this brake drum includes corrosion-resistant properties and a large contact surface area. Thanks to its robust one-piece design, this replacement part is an ideal choice for tankers, trailers, and freight vehicles. Fashioned, cast, and machined to restore your truck's brake assembly to its original condition. FleetPride is your First Click in Heavy Duty®.