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Vibration after new u joints..........

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Old 12-31-2017, 02:24 PM
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Default Vibration after new u joints..........

Hey guys- after I put the new u joints in and they were a little stiff- didn't move as freely as I thought they should, I get a vibration between 45 and 55mph. I've read about hitting the ears with a hammer. would these be the ears on the drive shaft holding the u joint cups? And how good of a smack are we talking here, I don't wanna distort the shaft...... TIA

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Old 12-31-2017, 02:54 PM
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Originally Posted by 2001 Sierra
Hey guys- after I put the new u joints in and they were a little stiff- didn't move as freely as I thought they should, I get a vibration between 45 and 55mph. I've read about hitting the ears with a hammer. would these be the ears on the drive shaft holding the u joint cups? And how good of a smack are we talking here, I don't wanna distort the shaft...... TIA

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In all reality when you replace ujoints the DS needs balancing.
Old 12-31-2017, 08:14 PM
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Did you mark everything and put it back the same?
Old 01-01-2018, 09:03 AM
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No, I didn't .
Old 01-01-2018, 09:50 AM
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Ouch. I would take it out and find a shop to balance it.
Old 01-01-2018, 01:09 PM
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Default U Joint

Hopefully you didn't bend the ears on
the yokes.the joints should move freely.
Old 01-01-2018, 03:52 PM
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Hey guys- broke away from the family circus long enough to gut everything apart for a look. No binding anywhere now, felt really good for the run around the block.......


Old 01-02-2018, 02:23 PM
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Took the truck out got up to 80, no vibes. I didn't reuse the cup/ joint with the smashed bearing, I had a spare u joint thinking when I was at the store I'd better get one extra just incase, and it paid off. Real happy..........

Old 01-03-2018, 03:18 PM
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Good deal. Ive experienced rotating the front (or rear when applicable) yoke 180 out when replacing u joints results in vibes. Easy fix just go back and reverse it.
Old 01-03-2018, 03:52 PM
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Yeah- I'm real happy it turned out OK............
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