My brothers friend has a LS1 Trans Am with the SLP 375HP package.
Ever since he got the car there is a slight whine (2 years now) and he said it is getting a little worse.
he replaced the wheel bearings in the rear as well as the u-joint.
but it still whines he took it to a shop and they said its the Axle pitting? never heard of that.
what else could it be?