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

Lifting and Jacking Tech Tip

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Old Jan 4, 2008 | 04:29 PM
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Default Lifting and Jacking Tech Tip

OK, I'm starting the job of removing a half shaft to replace the u-joints. Car's up, tire's off and I'm looking at the picture on page 4 of the Lifting and Jacking Tech Tip and at the underside of my car. And I'm scratching my head. I don't see anything that wide open under the car (it's a '94). Where is this jacking point relative to the rear wheel? Ahead of it? Behind it? Just under the XXX (replace XXX with that part of the corvette above this piece of frame. And please tell me!

Thanx
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Old Jan 4, 2008 | 09:49 PM
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I looked in tech tips and couldn't find one reguarding lifting, jacking, so I can't comment.
There is a lip seam from front wheels to back wheels. On my 86, there are a pair of triangles molded into the rocker panel, just behind the front wheel and just ahead of the rear wheel. Those are the jacking locations on the lip seam.
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Old Jan 4, 2008 | 09:50 PM
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This may help:

http://www.c4guru.com/articles/TowingJacking.pdf
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Old Jan 4, 2008 | 10:19 PM
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http://personal.tmlp.com/scorp/vette/images/ujoints/
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Old Jan 4, 2008 | 10:52 PM
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Minor observation Qack, but if you can't find the jacking points, are you sure you want to attempt changing the U joints

I just did my half shaft U joints and unless you have a good press you are going to have one hell of a time getting the old ones out!

On mine using my 12 ton press they just literally exploded out an 1/8" at a time with a violent bang even using PB penetrant

Just a heads up......good luck
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Old Jan 5, 2008 | 06:59 PM
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I had one helluva time getting the driveshaft ones out =]
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