This story appears in the April 11 print edition of E&MU, a supplement to Transport Topics. Maryland-based Ramar Moving Systems hauls specialty items such as art, satellites and, once, a moon buggy.

The debate over spring vs air ride trailer suspensions is far from over, even if air ride has emerged as the decisive winner in the marketplace. Some fleets are taking a fresh look at the virtues of ...

Leaf springs are one of the oldest forms of suspension. For hundreds of years, leaf springs have been used on automobiles, carriages, trailers, and so much more—and they’re still in use today. On the ...

Rassini’s 1+C Hybrid leaf spring features a single steel parabolic main plate and a flat glass fiber composite helper plate to provide suspension on the rear wheels of the Ford F-150 pickup truck.