straight-ahead miles in severe conditions. ‘Tandem skew’ or ‘scrub angle’ occurs when tandem axles aren’t parallel to one another or perpendicular to the chassis centreline. Drive axles will fight ...

Different in the trailer version is the 70.06" KPI straight-axle design compared with the drop-center axle on the truck-mount version. With a 12.5"-18.0" range of mounting heights, no subframes or ...

Right now, trailers hooked up to semi trucks are entirely freewheeling -- that is to say, there is no method of producing motive force from the trailer itself, it's just along for the ride.