Aside from its body, there’s absolutely nothing square about this 1978 Chevy one-ton heavy-duty. Oozing cool, this Squarebody ...

A mighty powerplant is needed to pull that tonnage, so Dodge provides the Dually with its 5.9L Cummins turbodiesel that produces 325 hp and 610 lb-ft of Texas tuggin' torque. High quality pics ...