Hi I own a 1999 Jeep Grand Cherokee Laredo V6. When ever I accelerate a whirring/whining sound comes from the rear, the faster you go the louder the noise gets. and when you stop accelearating the noise goes away. I need to know what this is like ASAP because my baby will most likely be born this weekend and if i dont get it fixxed then idk how I will get my new born son to his appts or anywhere without him going deaf from how loud and annoying this sound can be. please if you know leave me an answer, which ever one is the fix will get top rated answer. Thank you and God bless!