Hi, After driving for a while with the new polyurethane sway-bar bushings the steering performance is better than before. But there is an problem with that after a speedbump one of the sleeve connection bolt just has broken off. The bolts are 307A, grade 1, quality. So it is not the strongest bolt. I get some grade 5 5/17 bolts. But am thinking why the bolts just broken after a while driving over speed bumps? Can that be that the connection in the retainer link (to K-body) give to much friction? These are also new and have fit them with some silicone grease. Or there is something wrong with the retainer link units. Thanks!