The factory U-bolt plates were too small to accept the U-bolts for the larger-tubed axles so we had to make new ones. When we started this, we had no way to bend 1⁄4-inch-thick plate to make new ones, so we went with much thicker steel plate. All this time, we figured that the bent portion of the factory plate (arrow) was just for strength, but it turns out that isn’t all. According to Off Road Evolution, the smooth radius of the plate is also important so there is no stress point on the spring. The way our new plates are sitting on the spring, with no radius, will eventually lead the spring to break at that point. The plates had to come back off and get radiuses ground into them before we took the truck wheeling.