I've got a M35A2C and a hoist but haven't got around to installing it yet. I think it will work ok with some mods. The outside rail of the bed is made of thicker material on a dropside than it is on a standard cargo bed so that should help support the bed. What I was planning on doing to support the sides with the tailgate down is build a tailgate to use for dump work. I'm going to take and get some heavy walled tubing or soild stock that will fit in the rear stake pockets, run them up a foot or so above the sides, attach a rod between the tubing at the top, and build a swinging tailgate that will swing on the rod. That should hold the back of the sides and I can reinstall the stock tailgate when I'm not hauling something loose. I think it will work fine with rear support of the sides.