I finally took a video of the dump bed. Dad and I built this about a year ago and it has done it's fair share of hauling since. Whenever the camera goes under the truck, that's the PTO and pump, in case some of you all didn't know. It has a cable with a knob mounted to the floor board to actuate the PTO and a log splitter valve to lift and lower the bed. We opted for the log splitter valve because it has a locking feature and can lock in the down position so you don't have to hold the lever. It has a single stage telescoping cylinder, it did have a two stage single barrel cylinder but we changed it because of dump height issues.