A load cell to measure displacements transferred by a fifth wheel to the load cell includes an elongated mounting base portion configured to attach to a support structure of a tractor, a coupling portion configured to pivotally support a fifth wheel, a middle portion disposed above the elongated mounting base portion and below the coupling portion, the middle portion including a hollow interior section with an opening into the hollow interior section, and a post extending from the elongated mounting base portion and protruding into the hollow interior section of the middle portion.
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