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

U-joint Removal - Need Help/Suggestions

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Old Jul 4, 2002 | 04:41 PM
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Default U-joint Removal - Need Help/Suggestions

Changing the my half-shaft u-joints and everything was going well until I got the the right outside joint. Got the straps off okay, but the bearing caps are frozen solid in the hub spindle.
Have soaked repeatedly with penetrating oil. I've tried wacking directly against the bearing caps to no effect. Trying to be careful and not pry against the aluminum halfshalf or damage the spindle yoke. Part of the problem is that the yoke is recessed inside the knuckle and it's hard to get to.
Decided to walk away for awhile before I got frustrated and did something stupid.
Any ideas or suggestions out there?

Thanks,
Mark

:confused: :confused: :confused:
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Old Jul 4, 2002 | 05:04 PM
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Default Re: U-joint Removal - Need Help/Suggestions (90Z51Vette)

I would use a heavy punch on the bearing cap and try to shock it loose if there is no safe way to pry on it. Using a hammer and a punch should give you a bit more accuracy and direct impact.
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Old Jul 4, 2002 | 05:47 PM
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Default Re: U-joint Removal - Need Help/Suggestions (xzvs)

How about reconnectiong the half shaft at the differ. ...reinstall the tire , and with the car in the air have someone pry outward on the tire with a pinch bar while you hit the half shaft with a rubber mallet. Possibly the mere prying on the tire could pop it loose.
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Old Jul 4, 2002 | 06:30 PM
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Default Re: U-joint Removal - Need Help/Suggestions (ittlfly)

How about reconnectiong the half shaft at the differ. ...reinstall the tire , and with the car in the air have someone pry outward on the tire with a pinch bar while you hit the half shaft with a rubber mallet. Possibly the mere prying on the tire could pop it loose.
I already tried it except for the part about hitting the half-shaft with the rubber mallet. Thanks for the idea, I'll give it a try.

Thanks,
Mark
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Old Jul 4, 2002 | 07:10 PM
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Default Re: U-joint Removal - Need Help/Suggestions (90Z51Vette)

the half shaft should fall out if you removed the clips holding it. the U joint will come out by putting the half shaft in a vice {wrapped well so you don't scar it} take clips off the end, get something like a 17-22mm deepwall impact socket and a framing hammer or body hammer. start tapping, wd-40 or slick 50 sprayed all over can sometimes help ujoints that are a lil stuck. you can reinstall doing the same thing in reverse but i would suggest a U joint press. they are more accurate, less jarring and have a lot less of a chance of something being slightly twisted on install. make sure you buy spicers ! :smash:
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Old Jul 4, 2002 | 09:24 PM
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Default Re: U-joint Removal - Need Help/Suggestions (90Z51Vette)

How about reconnectiong the half shaft at the differ. ...reinstall the tire , and with the car in the air have someone pry outward on the tire with a pinch bar while you hit the half shaft with a rubber mallet. Possibly the mere prying on the tire could pop it loose.

I already tried it except for the part about hitting the half-shaft with the rubber mallet. Thanks for the idea, I'll give it a try.

Thanks,
Mark
If you haven't got it loose yet, use a block of wood along with a hammer. It shouldn't hurt the components as the wood is softer.
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Old Jul 5, 2002 | 12:52 AM
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Default Re: U-joint Removal - Need Help/Suggestions (gtsyellow)

the half shaft should fall out if you removed the clips holding it. the U joint will come out by putting the half shaft in a vice {wrapped well so you don't scar it} take clips off the end, get something like a 17-22mm deepwall impact socket and a framing hammer or body hammer. start tapping, wd-40 or slick 50 sprayed all over can sometimes help ujoints that are a lil stuck. you can reinstall doing the same thing in reverse but i would suggest a U joint press. they are more accurate, less jarring and have a lot less of a chance of something being slightly twisted on install. make sure you buy spicers ! :smash:
The retaining straps are off. The problem is that the u-joint bearing caps are actually rusted/frozen to the spindle yoke itself. The other three u-joints did fall out when the straps were removed. I'm going to try some persuasion with a rubber mallet in the morning.
Thanks,
Mark
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Old Jul 5, 2002 | 12:58 AM
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I had to take something like a thick screwdriver and wedge it between the u-joint and spindle and pry it out when it was rusted in place once. Soak it in something like WD-40 or Liquid Wrench overnight to help.
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Old Jul 5, 2002 | 10:07 AM
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Default Re: U-joint Removal - Need Help/Suggestions (90Z51Vette)

propane torch is best method if you have access. If not, soaking and malletizing is the only way. You might have to work up a mad at it to give you that extra little punch. :smash:
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Old Jul 5, 2002 | 10:55 AM
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Default Re: U-joint Removal - Need Help/Suggestions (southern_son)

Here's another suggestion. Take a 36 mm socket and remove the spindle nut and remove the entire spindle/halfshaft assembly and then you will be able to get at that pesky U-joint and apply the proper persuasion.
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Old Jul 5, 2002 | 08:58 PM
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Default Re: U-joint Removal - Need Help/Suggestions (mash557)

Here's another suggestion. Take a 36 mm socket and remove the spindle nut and remove the entire spindle/halfshaft assembly and then you will be able to get at that pesky U-joint and apply the proper persuasion.
Sounds like the best solution at this point. I soaked the thing for three days and it doesn't show any signs of coming apart. I just don't feel comfortable beating on it; I'm afraid that approach might get real expensive at some point...
Thanks for the advice.
Mark
:cheers:
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