Hey everyone, I own a 2008 LT. Recently I have been feeling and hearing what sounds like a grinding sound, not sure where it is from. Also the car is making the classic, woob woob woob sound when driving. The grinding noise is only heard at a slow speed while negotiating a curve or turn. I still have the 100,000 mile powertrain warranty but the dealer said it is $90 just to look at the car and if it is nothing to do with the powertrain than I am responsible for the charges. I know how to work on cars well so and ideas on where to start or any solutions would be most appreciated.