The 4x2 tractor can't get the rig moving on a slippery upgrade, so the trailer's powered rear axle provides a boost. Photo: Tom Berg from SAF-Holland video Powered trailer axles are unusual, even in ...
Heavy-duty truck suspensions have a thankless task. If they work correctly, they largely are forgotten in day-to-day fleet operations. It’s not until a suspension fails, or a driver starts complaining ...
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