C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

rear universal joints

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Old Jan 19, 2009 | 12:52 AM
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Default rear universal joints

Has anyone actually tried replacing these themselves? My four rear U-joints are pretty much shot. The local shop is telling me $780 to replace them. Seems kinda high for parts that are just a few dollars each. But it seems like the suspension is in the way so it might be worth paying to have it done. I haven't crawled under there to look myself yet, I wanted some opinions before I got dirty. Anyone?

In case my profile isn't working, I have a plain 1990 Corvette coupe with straight pipes running out the back.
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Old Jan 19, 2009 | 12:56 AM
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Save the money and do it yourself. It's not that hard.

Step by step with photos:

http://personal.tmlp.com/scorp/vette/images/ujoints/

When finished, give yourself a star.
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Old Jan 19, 2009 | 01:12 AM
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Originally Posted by 86PACER
Save the money and do it yourself. It's not that hard.

Step by step with photos:

http://personal.tmlp.com/scorp/vette/images/ujoints/

When finished, give yourself a star.


Go back in there with the Spicer U joints brand....they seem to last longer.
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Old Jan 19, 2009 | 07:18 AM
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Originally Posted by 86PACER
Save the money and do it yourself. It's not that hard.

Step by step with photos:

http://personal.tmlp.com/scorp/vette/images/ujoints/

When finished, give yourself a star.

And put $700 back in your pocket. And find a new mechanic. The old one is looking to retire early.
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Old Jan 19, 2009 | 08:39 AM
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Well, when I first got the vette back when I had no tools, time, or experience to do it myself, I paid a mechanic to do it for me. I spent about $180 total and I supplied the 4 half shaft joints. I used him because he had reputable C4 experience and knew what he was doing. $780 is pretty high.
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Old Jan 19, 2009 | 09:26 AM
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Originally Posted by 86PACER
Save the money and do it yourself. It's not that hard.

Step by step with photos:

http://personal.tmlp.com/scorp/vette/images/ujoints/

When finished, give yourself a star.
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Old Jan 19, 2009 | 09:40 AM
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Check this post for a source for the u-joints:

http://forums.corvetteforum.com/c4-g...o-ujoints.html
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Old Jan 19, 2009 | 11:22 AM
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Originally Posted by 86PACER
Save the money and do it yourself. It's not that hard.

Step by step with photos:

http://personal.tmlp.com/scorp/vette/images/ujoints/

When finished, give yourself a star.
VERY NICE write up...Looks fairly easy....Thanks a bunch
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Old Jan 19, 2009 | 11:44 AM
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The video looks good. I've replaced them twice in my 87 C4 without any knowledge of them. Very easy to do!
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Old Jan 19, 2009 | 01:15 PM
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Thepartsladi on ebay has AC Delco U-joints, the full set of six including the ones for the drive shaft for $80.00..WW
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Old Jan 19, 2009 | 01:52 PM
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Thanks folks! This is what I wanted to hear. I guess the mechanics in central Florida are all in cahoots. I went to three different shops and ot pretty close to the same price at each. I couldn't understand why they wanted so much. I changed the u-joints on my old Jeep three years ago and I remember it wasn't that tough. Based on your FANTASTIC instructions my Jeep was easier, but still . . . $780?
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Old Jan 19, 2009 | 03:00 PM
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For $780 you could boy 2 new halfshafts.
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Old Jan 19, 2009 | 06:09 PM
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Easy job. Do it yourself. Get the spicer sealed u-joints without grease fittings. I picked up a u joint kit from harbor freight and a few of their really long socket extensions.

http://www.harborfreight.com/cpi/cta...emnumber=38335

http://www.harborfreight.com/cpi/cta...emnumber=39193

http://forums.corvetteforum.com/c4-t...placement.html

Last edited by rickneworleansla; Jan 19, 2009 at 08:44 PM.
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Old Jan 19, 2009 | 06:47 PM
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If you don't have a bench vise, rent the ball joint press tool from Autozone. Should be able to do it with that one. You get your deposit back when you return it. Yes you can buy the Harbor Freight one, but you'll probably have it sitting around collecting dust before you need it again.
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Old Jan 19, 2009 | 09:35 PM
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I bought the harbor freight ball joint press and it pressed out the old U-joints from the half-shafts and pressed in the new ones perfectly.

If I wasn't rebuilding the entire suspension I'd be done by now.
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Old Jan 20, 2009 | 04:32 AM
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I'll be in your area next September,I'll do it for a rental car for a week.
Their are 2 different u-joints for the corvette,one is for the alum half shaft and the other is for the steel half shaft.I would get the cyroed for the streel shaft and they should hold for the life of the car ,Denny's drive shafts carries them and rea morrison and strange in Califronia.
The cost is around $55.00 each.You will need a jack and a vice and a socket just a little smaller than the shaft hole.You might need a pry bar if you are lazy like me to get the half shaft back in.I am to lazy to remove the dog bones.
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