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 ...

Tractors with gross-weight ratings of over 59,600 pounds, like this heavy haul model, are among those affected by FMVSS 121’s requirements for shorter stopping distances. Coming up: another “non-event ...

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 ...

Semi trucks continue to rely on drum brakes as their primary braking system due to their reliability under heavy loads. This practice is not only seen in commercial vehicle engineering but also in ...

Marathon Brake Systems recently introduced new products for heavy-duty trucks -- brake shoes, lined brake shoes and brake shoe kits. Marathon’s new brake shoes are manufactured and tested to the ...

Among the reasons someone might want to avoid passing a semi-truck is to steer clear of that harsh piercing screech it makes when slowing down. That sound is referred to as brake squeal, and although ...

Stellantis is recalling more than 300,000 Ram Heavy Duty pickup trucks because a faulty part could cause certain braking and tracking systems to fail.The Netherlands-based automaker said the hydraulic ...