I've done some search about this and the only thing I seen was axles problems which needed to be lubed up. My rear passenger suspension squeals really loud at times when I drive. What can this be? I don't want to take it back to infiniti because I know they won't be able to replicate the noise. Has anyone else had this problem on their G35 Coupe? I can def. hear it alot louder when the windows are pulled down. Again, this only happens off and on, mostly at low rpm cruise at about 10-40mph.

Any help would be great.
Thanks