Odd Thumping Noise In Rear

[Bubbles]

I've had this problem since test driving it at 127000 miles:

At around 35 mph, I can hear this slow yet constant thumping noise as if something was wrong with the wheels. At higher speeds the thumping noise frequency is higher.

I ended up rotating the wheels and the problem still persisted.

I put my car up on jack stands and I wiggled the rear wheels and there isn't any wobbling so I dont' think it's the wheel bearings.

Then I started the car up while on jack stands and I slowly got the car up to 35 -50 mph. I can definitely hear the noise from the back and it could be anywhere from the differential to the drive shaft to the brake system.

Well I then turn off the car and I manually turn the wheel. I can feel a resistance on some parts when turning the wheel. If I turne the wheel fast enough I can hear some scrubbing noise.

I changed the differential fluid with very thick 80w140 gear oil and I can still hear it and it's not any quieter.

Any suggestions on where the sound is coming from?

[JSC300]

Its prob the Hub...or the bearings....i had that problem too...but i replaced the back hubs it was about 600 beans...but its fine now