Leaf spring clamps

Heavy duty stainless OTR truck hose clamps work very well. You need to clamp the springs together tightly with a C clamp FIRST and then install the hose clamps. I used to use two at each section and never had one come off. But don't try to pull the springs together with them. They will hold them clamped together just fine, but they will not draw them together. That's why you need the C clamp.