Noise From Rear End When Driving.
I have a 2002 Jeep Grand Cherokee with 108,000 miles on it.
I hear the noise emanating from the rear of my jeep when driving with the windows up. The noise is similar to the sound a commercial jet makes when flying overhead. The noise starts around 10 MPH and gets a bit louder with speed. The sound is most pronounced at speeds below 25 MPH while costing. This is probably due to the lack of wind and engine noise that would otherwise mask the sound.
Any ideas what the cause of this sound is?
Note: I replaced the rear differential gear oil about 20,000 miles ago. After doing so, both axle seals started leaking. I replaced the axle seals, bushing, and bearings as required.