I do believe the attached picture should sum it up... BMW introduced a different style differential with the Z3 and I don't think that they were equipped with the 188mm medium case LSD's. From what I can tell (but not 100% sure) BMW got away from installing LSD's after ~1996ish with a few exceptions, the M3 being one of them. BMW either used Automatic Stability Control plus Traction ASC+T or a Torsen differential (similar to a Quaife). __________________ Alpine Weiß 1995 318ti M50tu mostly stock, chip'd 413, AFE Intake. e36 M3 front brakes, e30 M3 rear calipers. e28 3.25 LSD + e30 axles. Custom stainless Magnaflow 2 in 1 out muffler. R.I.P schwartz 1990 325is |