A particular kind of dump truck body called a "drop side dump body" has hinged sides that are removable or able to be lowered, making it simple to load and unload items. It is easier to reach and remove items from the truck bed when these sides are lowered. This design makes it easier to unload different materials quickly and efficiently, especially when spreading or precise placement is needed. Dropping the sides gives you more flexibility in how you dispose of items, which makes it simpler to arrange them exactly where you need them.