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Another U-joint question....

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Old Aug 26, 2006 | 09:15 AM
  #1  
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Default Another U-joint question....

How do you know if the inner or outer U-joints are the ones that need replacing? I know the outer ones were replaced about 30k miles ago, but not the inner. The occasional rear wheel squeak is back

Labor $ is crazy on replacement so I was gonna do most of it myself, but I want to make sure I'm working on the correct parts. Also I get the very slight vibration when rolling down the road at about 35 mph. Could the driveshaft be causing the squeak? I know the u-joints are typically the cause but I'm a little unsure of whether the problem is the half-shaft u joints or the drive shaft?
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Old Aug 26, 2006 | 09:57 AM
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You're bumpy ride might be something as simple as out-of-round tires or wheels. My experience as been that those kind of shakes are worse at a specific speed and then improve by either going faster or slower.
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Old Aug 26, 2006 | 10:07 AM
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That's one of the dumbest things I've heard in a long time. Go to the trouble to remove half shafts to replace bad u-joints and only do the outers? Who does that?

The sound is the tell tale sign of u-joint for me. Whether it squeeks or clicks, the cadence is usually 2x as fast as the shaft turns. Look for rust around the trunnions. If you find a bad one, for goodness sakes at least replace both u-joints on that axle. Even I'm not cheep enough to do just one.
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Old Aug 26, 2006 | 02:08 PM
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Originally Posted by newbecorvetteguy
That's one of the dumbest things I've heard in a long time. Go to the trouble to remove half shafts to replace bad u-joints and only do the outers? Who does that?
The previous owner
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Old Aug 26, 2006 | 05:47 PM
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If you have to replace one, do them both. Use the newer one for a paperweight.
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Old Aug 26, 2006 | 06:11 PM
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Originally Posted by newbecorvetteguy
That's one of the dumbest things I've heard in a long time. Go to the trouble to remove half shafts to replace bad u-joints and only do the outers? Who does that?
Don't you feel like an obnoxious **** now?

Originally Posted by Serenity Now
The previous owner
Check all of your joints for any play. If none is found, it doesn't mean that none are bad. Then you'll have to remove any suspect shafts to check for dry, tight, binding or rough feeling joints. It'll be quite evident at this point.
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Old Aug 26, 2006 | 07:04 PM
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Jack up the rear, get under there and turn the shafts and see if there is any play it should be fairly obvious if you have a bad one. It could also be the wheel bearing.
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