When paired with the 325 hp engine rating and the Allison 3000RDS transmission, the Mack MD is now capable of increased ...

A new 23,000-lb. rear axle and 325-horsepower engine rating boost durability and performance for vocational customers.

In an effort to give Mack Trucks’ vocational customers ... region a more durable and reliable powertrain. The rear axles on those truck models equipped with a dump body, hook lift or roll ...