Okay guys. In the past month I have busted 2 grade 8 7/16" shackle bolts, they break right at the nut and slide out. I lost half the bushing last time and had to stick a 1/2" drive 3/4 socket in there to drive around on until I could drive down to Summit Racing and buy some new bushings. I think it is the combo of pinchlock nuts, too tight of tolerances on the shackle bolt holes, and crappy 8" Superlift springs. I have new grade 8 7/16" bolts with nylock nuts that I am going to run, and I am going to ream out the holes in the shackles a little bit, but then I got to thinking. Should I just upgrade to a 1/2 inch bolt or will my 7/16" work? I am switching to the much better BDS 8" springs next winter and never buying another Superlift product again, those springs have been nothing but problems. Anybody else have a problem with shackle bolts breaking? I bought my 1 inch lift shackles from ORU, maybe that is the problem. Should I go bigger or stay the same?