Wobbling sound in the rear

[IminDiegoTriick]

Hey guys I have had a wobbling sound in the rear of my car for quite some time.. I believed that it was a CV joint and checked and the boot was torn. I believed replacing it would help which was wrong. I then thought the LSD fluid was a cause and replaced it with AMSOIL synthetic LSD fluid and i continued to hear the wobbling. I made sure the lug nuts were tight.. and continue to hear it. What could this be? Any information would help!

[Jean]

Wheel bearing? When is this happening? Does it increase with speed? Does it go away if you put the car in neutral?

[IminDiegoTriick]

Yes thats exactly it.. the noise increases with acceleration and decreases with deceleration. Noise is only present in motion.. I dont even know how to describe how annoying it is. lol

[z50_Jumper]

Another way of testing wheel bearings is if the noise gets quieter or louder when you go arround a turn. My front drivers side wheel would be auditable driving straight, get loud arround a left turn and get quiet arround a right turn.

[jlevie]

Get the rear of the car up in the air, place the transmission in neutral and spin each rear wheel. If you hear noise from the bearing you've found the cause. If the brakes are dragging, it may be necessary to remove the caliper and/or the parking brake shoes to be certain that what you hear is from the bearing.

A bad tire or bent wheel can also cause sounds. Swapping wheels from front to rear is one way to tell if that is the problem.

[e34john]

Get the rear of the car up in the air, place the transmission in neutral and spin each rear wheel. If you hear noise from the bearing you've found the cause.

So just spinning the wheel by hand will still produce bearing noise, if it is bad?

[Quadrajet]

^^ Yes it may not be as audible as a brake dragging though, depending on how bad it's gotten,that's why jlevie mentioned removing brake components to isolate the cause of noise. If it's gotten bad enough you may be able to grab the wheel and push/pull it and feel slop.

[IminDiegoTriick]

Yeah.. z50jumper I did not hear any sort of noise as im carving a right or left.. its only during acceleration & decleration. >.< I will try your opinion jlevie sometime tomorrow and I'll report back as I do so

[IminDiegoTriick]

I got the rear up and spun each wheel and no apparent sound is noticable... I am now going to try taking the caliper off 2 test if it is a bearing now.

[txtorquemade]

Could be driveshaft or u-joint too, me things, if its only on acel and NOT increased when turning or steering L or R.