JAGUAR: VEHICLES MAY HAVE BEEN MANUFACTURED AWAY FROM PROCESS AND IN SOME CASE THE REAR DIFFERENTIALS MAY HAVE BEEN SUPPLIED WITH EXCESSIVE SILICON CARBIDE LEFT IN THE UNITS. THIS CAN CAUSE PREMATURE WEAR ON THE DIFFERENTIAL PINION HEAD AND TAIL CARRIER BEARINGS, RESULTING IN UNACCEPTABLE DIFFERENTIAL NOISE AND DRIVELINE VIBRATION. *PE