a may be thinned or provided with depressions 324 a formed into the part to reduce thickness of the part where the greater thickness is not needed strategically reducing the thickness of the part can significantly aid in improved manufacturability an additional benefit is a reduction in the weight of the pivot connection without unduly reducing its strength and durability of the pivot connection the weight of the pivot connection will vary depending on the configuration of the pivot connection and size of dump truck the pivot connection is to be used with in some cases a standard pivot connection may weigh in excess of 800 pounds the amount of weight savings that can be achieved by thinning the walls or providing recesses will vary depending on the size and usage of the pivot connection in an alternative embodiment the pivot connection 300 a forms an integral part of the chassis rails 214 when the pivot connection is installed as a part of the chassis rail the pivot connection or hinge portion is designed into the rail to provide longitudinal support to the truck body as well as a pivoting connection for example each chassis rail can consist of a forward portion and a separate rearward portion in this alternative construction of the invention the pivot connection bridges or joins the forward portion and the rearward rail portion to act as a chassis support component the chassis support component overlaps the rails portions and is attached to the rail portions by welding or other means the chassis support piece mounts to the rails 214 at mounting portion 302 a similar to.