Yes, I too have been doing that same idea with my set up. I do run the bolt all the way through. I'm using a piece of Nylon, four actually, two per spring. I don't have air bags, and to slip them in place I just jack up the truck by the hitch receiver until the springs hang way down, then slip a pry-bar in-between the over load and spring pack to get the extra clearance needed for the bolts to slip through the factory holes. When I set my truck back down I have almost four more inches of height, until I load the camper, then everything comes level again. I love the way it rides without airbags, very smooth, no hopping over bumps. And it's good enough for me even when I pulling my sailboat or my four horse trailer. You've taken it another level by machining them round, very nice. Hans
