whirl in rearend
 

Can someone tell me if a bad rear wheel bearing whirls in neutral also or just in 1,2,3,4,5

a bad wheel baering will change tone and frequency with vehicle speed and also while cornering as it has a load on it, generally a bad wheel bearing will be louder on the side opposite you are turning into, ie. if you are turning to the left and the noise gets louder then the RR wheel bearing is bad because all of the force is being put onto the RR of the car. differential bearings usually change tone depending on load. bad transmission bearings usually change tone when shifting gears and come and go, a bad transmission input bearing usually makes noise while the car is idling in neutral with the clutch out. a bad pilot or throw out bearing usually makes noise with your foot on the clutch.

does a rear wheel bearing whirl in neutral??

when the car is in motion, sure. but if your sitting there, then no :)

Can you be alittle more specfic about this sound your hearing.

[QUOTE=Karackdifferential bearings usually change tone depending on load.[/QUOTE]

Wanna explain that more in depth? I'm having a problem with whirring/whining that changes tone under load.

Mine kinda makes a noise but not when im in neutral tho...

Dont make my mistake and replace the wrong wheel bearing. Sounds can bounce around and play tricks... If you take a Left sharp turn and the sound Go's away its your Left Bearing. (rear) in my case,) or you make a Right and the sound go's away its your Right. Easy to replace front bearings. if its rear gota spend about 10 minutes to get the Hub off and take it in.. 38 bucks for a sealed bearing at autozone. 60 bucks at sMucks.

wheel bearings tend to make a deep growling noise and get deeper in tone when they are under a load (hard cornering), you can usually feel slop in the wheel if you jack up the car and rock the tire, meaning the bearing is bad.

a differential out of adjustment or pinion bearings failing will make a high pitched "singing" type of sound, it can even get as low as a deep growl if the side bearings are also bad, the sound is usually unmistakable if you put the car on jackstands and spin the wheels off the ground, you can put a screwdriver tip to the case of the differential housing and put your ear to the handle end and hear the noise coming from the differential. you can place the screwdriver on various other areas of the car to try and identify the source of the sound.

you see the other day i had a flat tire(rear right) unfortunately i had a spare but no jack,so i drove to nearest gas station resulting in the tire coming off the rim..After i fixed tire,the next day i noticed this whirling coming from the rear..cant pinpoint whether its from the right side or not,so im assuming it must be something to do with me riding the rim..please note that this whirl goes away when cruising in neutral and reappears in all gears..wouldnt a bad rear wheel bearing whirl in neutral also...has anyone run into this problem before?.please your suggestions and or help will be greatly appreciated..i hate to tear into my rear with nothing to go on....Thanks

I have a howling rearend, but its not the bearings, oh no. A lot of the times, the singing noise in a rearend is caused by the hypoid gear and ring gear eating each other. I ran my diff out of oil unknowingly and now i'm waiting for a new one to come in the mail :D

Now, I have a transmission problem that i can't really figure out... in fourth gear (at low RPM's epscially) my transmission makes a pretty bad grind. Maybe not even grind, it almost sounds like somethings rattling really fast in there. It makes no noise in 1,2,3,5 or neutral, only fourth. Since 4th is straight through, i can't figure out what would be making that noise! Not that it matters a whole hellova lot, since I decided that i'm going to have my transmission rebuilt this coming winter anyway, but just as a though, would anyone know?

my tranny makes the same rattling noise, i insulated the transmission shifter and it is hardly noticable anymore and it doesn't seem to be getting any worse. my best guess is it is an idler gear bearing slightly worn.

I do state inspections and emissions,to check a wheel bearing you would jack up the wheel in question.place your hands on the tire at 3 and 9 o'clock,try to wiggle the tire side to side.Next place your hands on the tire in the 12 and 6 position,again try to wiggle the tire.Side to side and up and down "play" means your wheel bearing is no good. I just replaced the right rear wheel bearing in my 86 na.The tire would rock side to side,up and down.The bearing also hummed really loud.

I think I'm suffering from the same problem. :( I can grab the tire and very slightly rock it forward and back from the top of the tire (just enough to be noticable) and it makes a sort of howling noise from 40mph-60mph.

I just replaced the diff. fluid with Royal Purple gear lube, checked the axles, and the other wheel bearing seems to be good. The driveshaft also looks good and the whole system rotates smoothly without grinding or play, except that little bit of play on the right rear wheel.

How long can I drive with it like this before it fails and causes further problems? My wife's car still isn't going and my FC is my only ride for now. :(

What kind of tools does one need for this? I replaced the front right steering knuckle a month ago, so I have a basic idea of how the system goes together, but are there any special sockets or anything I need for it?

Oh yeah, is there normally a type of shop I can take the hub to so they could press the old bearing out and put the new one in? I suck at those type of tasks and do not have the tools. ;)

I think I'm suffering from the same problem. :( I can grab the tire and very slightly rock it forward and back from the top of the tire (just enough to be noticable) and it makes a sort of howling noise from 40mph-60mph.

I just replaced the diff. fluid with Royal Purple gear lube, checked the axles, and the other wheel bearing seems to be good. The driveshaft also looks good and the whole system rotates smoothly without grinding or play, except that little bit of play on the right rear wheel.

How long can I drive with it like this before it fails and causes further problems? My wife's car still isn't going and my FC is my only ride for now. :(

What kind of tools does one need for this? I replaced the front right steering knuckle a month ago, so I have a basic idea of how the system goes together, but are there any special sockets or anything I need for it?

Oh yeah, is there normally a type of shop I can take the hub to so they could press the old bearing out and put the new one in? I suck at those type of tasks and do not have the tools. ;)

I just did another quick search to see if I could find how long I have until the wheel explodes or something (no luck finding that answer yet), and read in a couple of places that replacing the hub witha low mileage assembly would be alot less trouble and would keep me from possibly taking my only drivable car off the road for too long.

What do you guys think about taking that approach instaed of going through the trouble of having someone press the bearing out and me trying to line everything up correctly again?

I hate to bump this again, but the answers are very important to me. Thanks! :D

i've never heard of a wheel bearing causing the tire to fall off explode etc. i know people that have drivin on theres for 2 - 3 years without replacing them do i recommend it no because it can cause further damage can you do it yea if you want to......if it just started you should be good for awhile but i wouldn't let it go

That was a figure of speech (it would be good for a luagh though.) I figure the worse that will happen is the wheel might lock (the LSD would make both lock I think) or I'll start to distort the knuckle.

I'm gonna get it replaced as soon as my wife's car starts going again, which should be soon. It just started making the noise too. :(

How hard is it to get the old pressed out and a new one put in? That's really the only part of the process that worries me.