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.

Every vehicle has its own suspension system, a collection of springs, shocks, and bars that keep the vehicle level and keep the tires on the pavement at all times. Remove a vehicle's suspension, and ...

Semi-trucks with a gross vehicle weight rating (GVWR) over 33,000 pounds are classified as class 8 vehicles by the Federal Highway Administration. The term semi-truck actually refers to the trailer, ...