Some semi trucks use single axles, while others use double or tandem axles. Here are the differences between the two setups ...

Spending a few hundred bucks on a dedicated semi-truck GPS might sound like overkill, especially when your phone already tells you where to go for free. But before you shrug it off, picture this: ...

GM doesn't make semi-trucks now, but it used to be one of the leading lights of the industry, thanks to class-leading offerings like the GM Crackerbox.