I have a whining sound in the rear end of my car. I'm not sure if it's coming from a wheel bearing or because the car has been wrecked. One of the brake caliburs in the rear passenger side is different from the other ones. Would that cause a roaring sound?

My 2002 Sequoia had that ***** whine too.
It ended up being rear wheel bearings.

Not to rule out ring and pinion gears in the rear end, I hope it ends up just being the bearings for you.

Bad wheel bearing most likely.

Whining sounds come from diffs that have a problem in the mesh between the crown wheel and pinion If yours is not front wheel drive then the noise may be from over tightened wheel bearings or failed bearings or the abs sender touching the exciter

Maybe you replace the wrong bearings, because that sure is a bearing noise you hear.

sounds like a wheel bearing.

Here are the common causes or rear end noises
Constant high pitched whine at all speeds: Pinion Bearings or Ring gear carrier bearings
Whine at steady speeds or whines on deceleration: Rear end gear set is worn and will need to be replaced.
Rumbling type of noises are caused by wheel bearings or a tire with a separated cord.

Sounds like a wheel bearing. Need to get it on hoist so can check wheels for play.

The rear end and the transmission are possible to blame. The rear end jacked up and on jack stands with both or all wheels off the ground . $ wheel drive needs all wheels to be up on alevel hard surface in a quite place. With a driver in the truck driving at the speed the noise is loudest listen to each partt with a broom handle pipe Ect. the rear ends are most likly and the noise changes from slowdown or speedup. Lack of lubercanrt would be nice or jast a bad wheel bearing ( grab the stopped wheel and try to move it up and down ) No play should be found and turn smooth, in and out a little is normal and the brakes on or off shouldn't changany thing or they are suspect. Driveshafts click pops and ring not wine. Trannys get bad bearings if they do you may have noticed other trans related problems as well. When trannys whine they do bad things are are getting ready to. Somr driveshafts have a carrier bearing are two piece and have a U joint in the middle. Listen to the sounding rod while running touched to this part and it will be a for sure if its bad

I sound more like there is something wrong in the wheels.I would check your bearings...

Hi I am Vortash sounds like you have a rear wheel bearing gone , they sound like a whine at first then they get progressively worse to a grinding sound you should replace it as soon as possible before it damages your spindleregards Vortash