Checking the mirrors should be a normal part of driving, but maybe 'Mike' had other things to look at than the car caught up in his trailer. Tom Berg has...

Where did North Korea get its trucks and trailers to haul weapons? On the internet there are reports that the trucks and tractor-trailers were made in...

HDT's Tom Berg says his friend Mike, who died in a rear underride crash more than 44 years ago, would be happy about recent safety advancements. Read more...

I looked at the transition radius on a Mac aluminum drop deck and it occurred to me that the radius is an arc, a portion of an arch – that engineering...

A forward-set steer axle is usually a way to stretch truck’s wheelbase to meet weight-distribution laws in so-called bridge states, but the styling of...

Fruehauf, as a blacksmith, noted that horses that pulled rather than carried loads were in better shape. He reasoned that trucks would likewise last longer...

Increasing need for electronic communications between tractors and trailers could require use of a second electrical line, say brake-performance specialists.

Anti-lock braking systems are supposed to keep brakes from locking, but this time didn’t. Why might that be?

Starting Jan. 1 of next year – fewer than nine months from now – all new 53-foot box-type trailers will come with trailer skirts, like ‘em or not. Tom Berg...

Wheel covers and fairings smooth the complex air flow around trailer wheels and suspension. They complement other trailer aerodynamic devices. Tom Berg...