Think I'll skip the grease thing 
clicks, clunks from rear?
Thread Starter
4th Gear
Joined: Mar 2005
Posts: 4
Likes: 0
clicks, clunks from rear?
New to the site, boy am I glad I found you! I have a stock 94 6sp with 107,000. At around 80,000 I began to hear some clicks and clunks from what seemed to be the rearend. So I took it to the dealer (I know 
) and they said it needed u-joints. So I had all of them changed. The sounds did not go away and I did not worry. Well the sounds are still there, any ideas what it could be? It runs and drives fine, I am getting concerned so I don't drive too far from home. At 102,000 went to the track 13.3 @105 just hypertech and a tune up. Pretty slick for a stocker. It happens when I let out the clutch every time I take off.
) and they said it needed u-joints. So I had all of them changed. The sounds did not go away and I did not worry. Well the sounds are still there, any ideas what it could be? It runs and drives fine, I am getting concerned so I don't drive too far from home. At 102,000 went to the track 13.3 @105 just hypertech and a tune up. Pretty slick for a stocker. It happens when I let out the clutch every time I take off.
Race Director
Joined: Feb 2004
Posts: 12,517
Likes: 19
Each 1/2 shaft has a teflon coated washer that fits between the yoke and the back side of the wheel bearing. This is likely your problem. Either they were left out or the teflon coating wore off. These are often overlooked or forgotten about.
Burning Brakes
Joined: Nov 2000
Posts: 1,117
Likes: 0
From: DFW TX
Don't llisten to those guys, I'll tell you what it is. :-)
But you have to answer this question.
Is it a click or a clunk? Big difference.
The typyical thing that so many people change u-joints and it does not fix the noise has to do with more like clicks.
When you take off from a stop, does it click like 1-5 times? Sound kind of like a creaking noise?
With someone listening from the outside, does it sound like its coming from right behind the wheeel?
If so, may simply be rust on the hub/bearing splines. Normally removing the hub, greasing the spline teeth with some anti-sieze and torquing the spindle nut back go specs will take care of it. This is very common on C4's.
BTW, it is not dangerous if that is what it is so don't worry too much about driving it.
Dan
But you have to answer this question.
Is it a click or a clunk? Big difference.
The typyical thing that so many people change u-joints and it does not fix the noise has to do with more like clicks.
When you take off from a stop, does it click like 1-5 times? Sound kind of like a creaking noise?
With someone listening from the outside, does it sound like its coming from right behind the wheeel?
If so, may simply be rust on the hub/bearing splines. Normally removing the hub, greasing the spline teeth with some anti-sieze and torquing the spindle nut back go specs will take care of it. This is very common on C4's.
BTW, it is not dangerous if that is what it is so don't worry too much about driving it.
Dan
Drifting
Joined: Feb 2004
Posts: 1,277
Likes: 1
From: Santa Maria CA
Originally Posted by 92corvette
Don't llisten to those guys, I'll tell you what it is. :-)
But you have to answer this question.
Is it a click or a clunk? Big difference.
The typyical thing that so many people change u-joints and it does not fix the noise has to do with more like clicks.
When you take off from a stop, does it click like 1-5 times? Sound kind of like a creaking noise?
With someone listening from the outside, does it sound like its coming from right behind the wheeel?
If so, may simply be rust on the hub/bearing splines. Normally removing the hub, greasing the spline teeth with some anti-sieze and torquing the spindle nut back go specs will take care of it. This is very common on C4's.
BTW, it is not dangerous if that is what it is so don't worry too much about driving it.
Dan
But you have to answer this question.
Is it a click or a clunk? Big difference.
The typyical thing that so many people change u-joints and it does not fix the noise has to do with more like clicks.
When you take off from a stop, does it click like 1-5 times? Sound kind of like a creaking noise?
With someone listening from the outside, does it sound like its coming from right behind the wheeel?
If so, may simply be rust on the hub/bearing splines. Normally removing the hub, greasing the spline teeth with some anti-sieze and torquing the spindle nut back go specs will take care of it. This is very common on C4's.
BTW, it is not dangerous if that is what it is so don't worry too much about driving it.
Dan
IM EXPERIENCING THE SAME SYMTOMS AS ABOVE AND WILL TRY TO DO THIS TOMMAROW AT THE MY SHOP.FUNNY HOW I JUST DID A RR WHEEL BEARING A SHORT TIME AGO......THANKS FOR SOME ADVICE!
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Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
SHINOBI-X, while you have the rear wheels off check out the U-joints in both half-shafts.
I found one lose U-joint; after I had the two in that half-shaft replaced the clicking was gone.
I found one lose U-joint; after I had the two in that half-shaft replaced the clicking was gone.
Drifting
Joined: Feb 2004
Posts: 1,277
Likes: 1
From: Santa Maria CA
JIM- i'll check em' when i get em' up just to see. they are all 6 months old.i put all 6 u joints in with in a month span of each other(2 one time,4 another). hope its not one of them again.i can do with out all that for awhile 
Drifting
Joined: Apr 1999
Posts: 1,261
Likes: 6
From: Middletown New Jersey
I drove it for about a week till I brought it back to my mechanic. He put it up on the lift and found the crack in the spring. I was there when he did it so I know it truly was cracked. I don't here of this very often on the forum so I would assume that this a rare occurence. Definitely check on all the things listed above since you have to get under there anyway.
Race Director
Joined: Nov 2000
Posts: 10,340
Likes: 664
From: Beverly Hills (Pine Ridge) Florida
Just as another source of noise from the rear (on an 87 Z-52), I have Bilstein shocks that make a click (on either jounce or rebound - can be heard with normal wheel movement over very small bumps & undulations). Disconnected the shocks (one side at a time), and no click. Shocks function properly and no sign of leaks, and the shock mounting rubber is fine. Noise (click) is internal to the shock, but I can hear it while cruising. Maybe I need a louder exhaust!
Anyone else seen this?
Plasticman
Anyone else seen this?
Plasticman
Pro
Joined: Jun 2004
Posts: 520
Likes: 2
From: Mandeville, LA / Clemson, SC
I've got a similar problem also.... where can you get that Teflon washer mentioned??? I know for a fact mine doesn't have it because I just got done doing all u-joints and rear wheel bearing. Mine clicks when first put in to gear and the suspension flexes. And when I give it the gas the first time it clicks. It really sound like its coming from the brakes though...but i've checked everything with them I think. It does click sometimes driving around but most of the time it is just when first put into gear D and Park. The Teflon washers are worth a try...Thanks.
Le Mans Master
Joined: Feb 1999
Posts: 9,921
Likes: 38
From: South Carolina
St. Jude Donor '03 & '05
92 Corvette is dead on. I had the same problem on my 93. The spindles are different metals than the bearing they ride on, and there is no grease in there. SO, I took off the wheel bearing spindle assembly, then applied some grease, and the noise was gone. Dont go to a dealership, go to a Corvette specialist.
Instructor
Joined: Dec 2004
Posts: 175
Likes: 0
From: Athens Alabama
I may not be very helpful with this advice, but here goes...
The C beam that goes from the rear of the transmission to the front of the differential can make noise if it has been removed and re-installed without some type of sealant.
Just my 2 cents.
Good luck, I hope you get it solved.
prattman
The C beam that goes from the rear of the transmission to the front of the differential can make noise if it has been removed and re-installed without some type of sealant.
Just my 2 cents.
Good luck, I hope you get it solved.
prattman