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 ...

The HX Series, International Truck’s premium vocational model, is going into next-generation form with new composite hoods and a larger steel cab featuring interior refinements. International ...

The Bridge Formula often drives the front axle configuration (axle forward or axle back) and the rear axle spacings of your vocational truck fleet. Congress enacted the Bridge Formula in 1975 to limit ...