At 05:45 AM 4/5/01, Dan wrote:
>If the case on the transmission does not have the code number for a Limited Slip Differential, how does one tell if the differential has been upgraded - short of taking the transmission apart?? Of course if the case is stamped for LSD it is still possible that a PO swapped the differential.
Put one rear wheel on the dirt and one on the pavement and accelerate moderately.
Jack the rear of the car, put the transmission in neutral. Turn one rear wheel. If both rear wheels turn in the same direction, you have limited slip. If the other rear wheel turns in the opposite direction, you don't.
Jack one side of the rear of the car, put the transmission in neutral and try to turn the jacked wheel. If it is difficult to turn, you have limited slip. If it turns easily, you don't.
Jack up rear of car, put transmission in neutral, and rotate one rear wheel
by hand. The other wheel should turn in the same direction if it is limited
That depends upon the model year. Earlier cars might have optional limited
slip - the answer given by Paul is correct. Later cars have PSD, which is a
computer-controlled variable system, and his suggestion does not work for those