At speeds under 60 mph there is no noise with any maneuver. From 60 to 80 mph when turning left somewhat hard, like on an expressway exit or flyway, but not so hard its uncomfortable to passengers, there comes a grinding noise from the center of the car seemingly behind the transmission. IF you cruise at 80 plus mph for ten minutes or so you can just wag the wheel lightly turning the car to the left and the same grinding noise comes from the center of the car seemingly behind the transmission. I've been advised that it could be the right rear axle bearing.
Any thoughts?
All suspension rubber including mounts are less than two years old.