Rear Noise on my 97 dodge caravan

Recently, I have getting a loud sound coming from the rear of my van,
at first, I thought it was the tranny, but that is not so, I'ts sooo
loud, could it be bearings?

 

whats it sound like? a screach, or a low rumble?

 

Not much in the rear of these vans, as they're front wheel drive.
Without better information, my first guess would be fuel pump. But
that is just a guess.

 

Jack up the rear of the van so that the tires clear the ground. Spin
each rear wheel to see if rear wheel bearings are noisy.