What does the term unibody mean?
A unibody vehicle is one that uses structural components welded together, as a part of the body of the vehicle, rather than having a separate frame assembly. The rocker panels take the place of the frame rails and the front and rear aprons and body structure serve as mounting points for the suspension. By contrast, a frame type vehicle has a separate frame to mount suspension components and the body is supported by the frame. Some unibody vehicle also employ a partial bolt-in sub-frame for suspension mounting.
