alright, answer to first question, im in lower Westchester county. as for my diff problem, its a long story but ill make it short. for some time a heard a rattling noise in the rear. i took it to 3 mechanics and they said nothing. magically, the noise went away for two months up until last week. i heard a bang and the rattling again. Friday, i heard the loudest bang and rattling. from the beginning, the crunching/ grinding noise came went starting at a dead stop and and rattled at a constant speed when i decelerated. so, after the loud bang, i parked the car and noticed a trail of oil. i got underneath the car (though it was dark out) and saw a hole in the diff rear cover along with a tiny crack. i believe that it must of chipped something and shot it out. anyways, i was twenty minutes away from home i thought the car was not going to run. to my astonishment, the car ran fine without a single noise! so, now im stumped.