I also have a pair of factory suspension u-bolt shackles (not sure what they're actually called) for sale. They sit on top of the front leafs and the u-bolts bolt up into them from underneath. I had them powdercoated a silver metallic, then realized I had two pair and don't need these any longer. They're really nice. They have not been installed since the refinishing. $60 for the pair. See pics…