sorry I dont have any closer pictures of the cylinders right now, but they (for the bed) are mounted behind the rear wheel, and angle up and away from the truck. They appear to be single action cylinders(only one hose to each) and it looks like you release the pressure to lower the bed, then extend the cylinders to push up on the rear of the bed and level it out. So this would mean the rear half of the bed is heavier than the front half?? I know it sounds pretty goofy and I have never seen another tilt bed set up this way either but thats the way it appears it works. The cylinders for the winch lay horizontal in the headache rack on the front.

OldIronChevy- yes this truck was owned at one point by a local Oliver dealer, I'm curious as to if they painted it green and white or if it came that way. Might have to see if I can track down someone from the dealership to ask them more about it.