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1997 Eldorado, 2003 Audi RS6
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Discussion Starter #1 (Edited)
I have what I had initially thought to be a loose rear wheel hub. I had already purchased the replacement, and in the process of breaking the bolts loose on the original, found what was really causing the movement. I could grab the wheel and rock it at any positions, usually a dead giveaway that the wheel hub is broken.

Anyway, I found that the upper bushing (knuckle to control arm) is actually what is worn out, and worn it is... it is very bad, clunking over bumps, and no doubt causing the rear end vibration I have had for a few months now.

The driver's side produces somewhat less of the same movement, but no clunk over bumps yet.

My question is... Does anyone have any idea what to do about this other than replacing the knuckle? I really don't want to pay $555 per side for it, or even the $400 that a local dealer offered me. The part is, according to GM, not serviceable on a 1997-2002 car, yet it is removable. On a 1994, 1995, 1996, it is replaceable. Is there a reason for this, is there a difference in the part that you can actually see? I don't have the older part so I can't look at it closely or measure it.

I would really like to find something that would fit, and I do not want to turn my own polyurethane bushing or anything like that. This is a Cadillac, not a Cobalt SS that wants to be a sports car.

This clunk, wander, and vibration really has to go.
 

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I have what I had initially thought to be a loose rear wheel hub. I had already purchased the replacement, and in the process of breaking the bolts loose on the original, found what was really causing the movement. I could grab the wheel and rock it at any positions, usually a dead giveaway that the wheel hub is broken.

Anyway, I found that the upper bushing (knuckle to control arm) is actually what is worn out, and worn it is... it is very bad, clunking over bumps, and no doubt causing the rear end vibration I have had for a few months now.

The driver's side produces somewhat less of the same movement, but no clunk over bumps yet.

My question is... Does anyone have any idea what to do about this other than replacing the knuckle? I really don't want to pay $555 per side for it, or even the $400 that a local dealer offered me. The part is, according to GM, not serviceable on a 1997-2002 car, yet it is removable. On a 1994, 1995, 1996, it is replaceable. Is there a reason for this, is there a difference in the part that you can actually see? I don't have the older part so I can't look at it closely or measure it.

I would really like to find something that would fit, and I do not want to turn my own polyurethane bushing or anything like that. This is a Cadillac, not a Cobalt SS that wants to be a sports car.

This clunk, wander, and vibration really has to go.
It appears we have an identical problem, I was hoping that someone with more knowledge then me could answer your question. I brought my Eldorado to a local mechanic who didnt feel comfortable working with a 97 because it was far different then previous year models ( I dont understand it but anyway) He did give me a schematic of the problem which I hope will help you and anyone else who can offer less expensive way to fix this problem

Good Luck

 

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Cadillac
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73 Posts
I have what I had initially thought to be a loose rear wheel hub. I had already purchased the replacement, and in the process of breaking the bolts loose on the original, found what was really causing the movement. I could grab the wheel and rock it at any positions, usually a dead giveaway that the wheel hub is broken.

Anyway, I found that the upper bushing (knuckle to control arm) is actually what is worn out, and worn it is... it is very bad, clunking over bumps, and no doubt causing the rear end vibration I have had for a few months now.

The driver's side produces somewhat less of the same movement, but no clunk over bumps yet.

My question is... Does anyone have any idea what to do about this other than replacing the knuckle? I really don't want to pay $555 per side for it, or even the $400 that a local dealer offered me. The part is, according to GM, not serviceable on a 1997-2002 car, yet it is removable. On a 1994, 1995, 1996, it is replaceable. Is there a reason for this, is there a difference in the part that you can actually see? I don't have the older part so I can't look at it closely or measure it.

I would really like to find something that would fit, and I do not want to turn my own polyurethane bushing or anything like that. This is a Cadillac, not a Cobalt SS that wants to be a sports car.

This clunk, wander, and vibration really has to go.
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1994 Cadillac Eldorado Touring Coupe
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821 Posts
Uhh.. Usually when you spam, you want to post to something recent.
Not something from 2007.
 
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