I am in the process of building a new flatbed on a Doge 4500. This will be a similar setup to the Ford F450 Flatbed build that I did in 2008. The biggest mistake that I made the first time, was cutting holes in the boxes to allow the tiedowns to be hidden. And soak everything in those boxes. I am looking for another way to attach the camper and bed together. I have thought of using the camper jack locations and attaching anchors to the front and back of the bed. I also think that I would like to use more spring loaded tiedowns. I thought that a long time ago I saw an advertisement for a spring loaded attachment that you would put on a turnbuckle tie down to give it spring . But now I can not find the name of the product. From what I remember, it was about 5 inches long, a threaded female end and a hook on the other. It was preset with 300 LB of tension. How important is it for the tie downs to be angled? I think that being perpendicular to the bed would allow a lot of movement. As compared to being at oblique angles to the bed and camper. Maybe alittle movement will save a tiedown from being ripped out. Any help in the issue would be appreciated.