[Stay on top of transportation news: Get TTNews in your inbox.] When it comes to spec’ing, getting the best fuel economy is about building a tractor with all the right pieces. Even with the best basic ...

Have you ever wondered why some semi trucks have one set of wheels and others have two sets crammed together? That's because some semis use a single axle while others have tandem axles, but why is it ...

In an effort to give Mack Trucks’ vocational customers improved durability and broader options for their applications, Mack is now offering a 23,000-pound rear axle and Cummins B6.7 engine with up to ...

The Mack MD Series features a 23,000-lb. rear axle and a 325-horsepower engine for improved towing and durability. These upgrades benefit sectors like refuse and construction, supporting various ...