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U-Joint Install ? See Pic

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Old Mar 3, 2007 | 04:27 PM
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Default U-Joint Install ? See Pic

I'm installing the driveshaft onto the back of the tranny but my U-joint doesn't fit under the little notch on one side like it does the other. Does this look correct?


Last edited by 79vetter; Mar 3, 2007 at 04:32 PM.
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Old Mar 3, 2007 | 04:34 PM
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That is NOT correct, it has to be seated on both sides. Make sure that both caps are pressed in all the way and they should fit behind notches.
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Old Mar 3, 2007 | 04:43 PM
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yeah..strange because I can't push the caps down any further...
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Old Mar 3, 2007 | 04:52 PM
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Pull the caps off and check to make sure a needle hasn't fallen out and gotten between the cap and the joint.
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Old Mar 3, 2007 | 04:57 PM
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Just a thought. Is it the correct joint? There are 2 dimension joints to use a 71 and later driveshaft(larger) with a 70 and earlier yoke(smaller). Could you have one or the other?
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Old Mar 4, 2007 | 12:02 AM
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It could be merely that residual air pressure in the cap pushed to out. Loosen the cap retainer and see if you can press it into place. If not, a roller dropped down when you installed the cap, or you have the wrong U-joint (as said above).
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Old Mar 4, 2007 | 12:29 AM
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Originally Posted by 79vetter
I'm installing the driveshaft onto the back of the tranny but my U-joint doesn't fit under the little notch on one side like it does the other. Does this look correct?

NOPE
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Old Mar 4, 2007 | 07:51 AM
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I bet you have a needle laying down in the cap. I've been there. Glad you asked for help, results may not have been pretty.
Mike
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Old Mar 4, 2007 | 07:54 AM
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lol thats the classic needle bearing on the end of the cap syndrome!
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Old Mar 4, 2007 | 09:29 AM
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I pulled the caps off and don't anything unusual in the bottom of it
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Old Mar 4, 2007 | 09:34 AM
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The correct part, installed correctly, will fit between the ribs. They keep the caps from "flinging" off at speed.
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Old Mar 4, 2007 | 10:16 AM
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Measure the joint. Then measure the yoke.(inside the tabs) You may have a pre 71 yoke. In which case, as I said earlier, you need a 2 dimesional joint, or a correct yoke.

Did you compare the new joint with the old one?(2.25" 71 and later).(2.00" 70 4sp and earlier)

Last edited by dennis; Mar 4, 2007 at 10:28 AM. Reason: more info
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Old Mar 4, 2007 | 10:44 AM
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Is there too much grease in it?, it could prevent the cap from going in all the way. Other than that if all the needles are in place then the u-joint must be wrong. Is the other side butted up aginst the tab on the other side?
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Old Mar 4, 2007 | 10:49 AM
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If no needle under the cap, compress caps on spider with a C-clamp. But first make sure you don't have an excessive amount of grease on the bearing. Sometimes they're hard to seat if there's trapped air or grease or if a seal gets caught. If that doesn't resolve the problem, you must have the wrong U-joint.
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Old Mar 4, 2007 | 11:20 AM
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Originally Posted by 75 Hot One
If no needle under the cap, compress caps on spider with a C-clamp. But first make sure you don't have an excessive amount of grease on the bearing. Sometimes they're hard to seat if there's trapped air or grease or if a seal gets caught. If that doesn't resolve the problem, you must have the wrong U-joint.
If you are using greaseable joints, you can press the ball bearing down in the zerk fitting with an awl while you compress it to release any air/grease pressure that is not allowing it to fully seat.
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