I've been around the Z32 for about 18 years now, but I haven't 'worked' on anything suspension related. I'm sure there are tips with do's/don'ts..... I'm REALLY thinking it is my speedo though, because I'm suffering from hard steering also, then all of a sudden it will jolt and become loose (feels scary). My balls joints weren't visibly cracked/broken, same with all other visible bushings in the rear. Please keep insight coming! Thanks Doug71zt!!!