Hitch

Every truck should be equipped with a hitch that is compatible with the one on the spreader box. This is very important, since the spreader box tows the truck as the load is being emptied. In most cases, this is a bar-type hitch as shown in Figure 7‑40.
Latch on Tailgate of Haul Truck. (click in image to see full-size image)
Figure 7-39. Latch on Tailgate of Haul Truck.
Truck Hitch to Connect to Aggregate Spreader. (click in image to see full-size image)
Figure 7-40. Truck Hitch to Connect to Aggregate Spreader.