Originally Posted by onehundred80
The only change that occurs when you turn left or right is the action of the differential. Every thing else, like the brakes, moves the same. The diff. however turns the half shafts at different rates of rotation.
I would suspect the diff, CV joints or half shaft bearings.
You say the sound comes from the tires, that's a bit vague to diagnose though. Do you really mean tires or that general area? How many miles on the car?
I have a friend with a Tahoe that was making a grinding noise from his rear brake. When he would travel straight it was less noticeable. Turning right was louder. Turning left it went away. He fought for about a month trying to figure it out. New brakes. 2 repair shops. Dropping the drive shaft. He found out that the sheet metal shield on the left rear brake was bent. It couldn't be seen without removing the rotor. Turning right caused centripetal force and the metal to be closer to the rotor and get louder. 5 minutes of bending it back to where it was supposed to be and the noise was gone.
Please exhaust the easy options before spending big bucks.