Are the u joints the same for drive shaft as well as 1/2 shafts ? 65 coupe 327 4 speed
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Re: u joint
No they are not. They are different.
Larry -
Re: u joint
could you explain what is needed to replace all 6?Comment
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Re: u joint
4 Correct joints for the 1/2 shafts
2 Correct joints for the main shaftComment
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Re: u joint
We can also provide part numbers, but you will need to decide between the ACDELCO/Federal Mogul/Precision Brand or the Spicer Brand. Many like Spicer, and they are the better joint....also more expensive. But the ACDELCO ones looks closer to original and are adequate for most of our hobby cars not running slicks or 1/4 mile drags.
Your choice.
I have the ACDELCO ones on my own 67 327/350 HP car and they are fine. But production recently did switch from USA to Mexico I believe. I do not know where the latest Spicers are made.
LarryComment
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Re: u joint
ACDELCO/Federal Mogul/Precision Brand would be fine.
Thankx to Stephen Lavigne and Larry Mulder for your kind assistance!Comment
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Re: u joint
Driveshaft: GM#89029327 or ACDELCO #45U0145 or Precision #269
Halfshaft: GM#89029305 or ACDELCO #45U0123 or Precision #231
These u-joints do NOT have zerk fittings........just as originals.
They will fit without altering the driveshaft or half shaft yokes. But you should use a structural support block for removing and installing the half shaft flange side to prevent distortion. Be forewarned!!!
LarryComment
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Re: u joint
Once again Larry thank you for your kind attention to this matter.Comment
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Re: u joint
Tom just to add, if you have not replaced 1/2 shaft joints before, they are usually very tight. There are several methods used, you can look at the shafts below the yokes and see if there are any flat spots were someone crushed them in a vise removing them.
The flanges bend easy and who knows yours may have a slight bend in them. If you were going with solid Spicer joints they won't work if the flange is tweaked. The AC and others I can't say as I almost always use Spicer. Spicer can be broken, we sheared 2 in half, but for a street car most will be fine. I would still use a solid over a zerk joint.
I use a torch and burn out the cross of the joint and this makes it a lot easier.
Regardless of method, use a plate and bolt it to the flange to keep it from bending. Vendors sell them, I machine my own out of 3/4 steel, or you can make up something if you have any stock or old axle flanges.Comment
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Re: u joint
Thankx Gary any feedback is more than welcome , as I'm finding these cars are more complicated than anticipated.Comment
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Re: u joint
If you plan to have your car judged, no zerk fittings, also you need to try find the ones with the flat caps on the u joints.Comment
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Re: u joint
How do you think those flanges get bent? Is it because of removing
the flange nuts. Afraid to use more force to break them lose. Or is it
Pressing the u joints out of the1/2 shaftsComment
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Re: u joint
Tom
Bent flanges are from previous workers not experienced with these cars. They don't warp over time. The joints are very tight, when conventional methods are used as for a common driveshaft, usually you will find bent flanges and dented shafts. I haven't tried to press out 1/2 shaft joints in many years, always burn them out and have done a lot like that. That reminds me I need to get more oxy/ace
gas.Comment
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Re: u joint
Will I bend the flange by applying extreme force on the nuts that hold the u bolts.
thanx, you've been very helpful.Comment
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Re: u joint
no, the U-bolts go around the joint caps and into the inner axle yoke. There is a torque spec for those bolts, extreme torque may bind the cap in the yoke. The flange is on the other end, bolted to the inner axle flange. They are bend when trying to remove the joint from the flange. Usually, the flange is bolted to steel plate or even the axle flange when removing the joint.
I wrote this 15 years ago, almost to the day. It might help.
1/2 Shaft U-Joint install | Corvette Forum : DigitalCorvettes.com Corvette ForumsComment
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