Many of the larger vehicles on our roads have one intriguing thing in common: They can make sudden, loud, gas-escaping hissing noises. These noises, admittedly, have made this writer jump — on more ...

Five years ago, when federal authorities announced that stopping-distance rules for heavy tractors would get stricter, there was talk that this would finally cause a conversion from drum brakes to air ...

New braking rules require shorter panic stops, but the resulting stronger brakes will have otehr benefits like increased fade resistance on long downgrades. Emerging from truck factories in the U.S.

For heavy duty trucks like semis hauling lots of cargo over long distances, conventional friction brakes just can't do it on their own. To maintain safe speeds and prevent overheating on long descents ...