get under the back of ur car and count the bolts man, it seems LSD came with 5 bolt flange and non LSD 6 bolt flange, which means axle setup and everything is different. With an open diff u get slipage hence u get one wheel spinning cos the other gear isnot moving. in and LSD it transfers the torque evenly, u shouldnt really get wheel spin unless there is too much torque. Or sumthing like that correct me if im wrong!