Forklift cyl's are single acting and you will need a double acting cyl . to move the bed both way's, I havent had to much time to get back with you but I havent found to any pictures of my rollback. But I remember that I got my cyl from a Airforce Auction, and it was only a 3" by 8' cyl. Never had any trouble sucking the bed up. As soon as I get time I will draw something up and scan it. My truck, 71 Ford with a 361 V8 and a 5 speed 2 Speed axle and only 10.000 lbs.
