I'm in the process of knitting a trailer back together - for the sake of this thread, it would be good to stick to the discussion of suspension components without digressing into legal nuances of trailer builds The question here is around leaf springs connecting to the suspension components. Here's a good picture: My question is around the nuts that attach to the U-bolts on the leaf springs but also the nuts that are threaded through the bushes. Is a nyloc nut enough? Should there be another couple of nuts behind it that are tightened up? Should I be using threadlock? Or some other solution?