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Author Topic: Driveline Vibration  (Read 67189 times)

Offline philo_beddoe

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Driveline Vibration
« on: July 08, 2016, 01:00:20 pm »
https://vimeo.com/173942618

Noticed when changing u joints.
« Last Edit: September 26, 2016, 12:42:11 pm by Irish_Alley »
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Offline VileZambonie

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Re: Should this do this?
« Reply #1 on: July 08, 2016, 05:09:21 pm »
The bushing is what keeps the driveshaft centered in the tailshaft housing
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Offline hatzie

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Re: Should this do this?
« Reply #2 on: July 08, 2016, 05:52:56 pm »
The Yoke fits semi tight on those splines and the outside of the yoke rides in a bushing in the tail shaft housing to keep it centered.
Without the yoke installed the output shaft is essentially missing the end bearing...  Not sure how much play there's supposed to be but that video really doesn't shock me.
I don't think I'd worry if it's not making noise with the driveshaft installed.
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Offline philo_beddoe

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Re: Should this do this?
« Reply #3 on: July 08, 2016, 06:54:50 pm »
No noise, shifts fine. A little humm vibration is still present after installing the new ujoints, guess i'll have the shaft balanced and go from there. Put in some nice spicer joints, didnt have any problems.
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Offline philo_beddoe

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Re: Should this do this?
« Reply #4 on: July 09, 2016, 10:40:07 pm »
Update: been driving around all day, seems quite smooth. May or may not get dshaft balanced.
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Offline VileZambonie

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Re: Should this do this?
« Reply #5 on: July 10, 2016, 08:01:02 am »
Is the driveshaft moving around in the tailshaft? Is the seal leaking? If so replace the bushing and seal.
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Offline philo_beddoe

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Re: Should this do this?
« Reply #6 on: July 11, 2016, 06:55:23 pm »
I'll check for movement, remember a while back, that weep hole started leaking a little? Then i plugged it with RTV, and the leaking stopped. Does that mean anything?
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Offline philo_beddoe

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Should this do this?
« Reply #7 on: July 11, 2016, 07:06:47 pm »
Update: just checked,, no movement at all in the tailshaft.

Oh, when i removed the dshaft, a little tranny fluid came out where the slip yoke goes. Is that ok?
« Last Edit: July 11, 2016, 07:09:57 pm by philo_beddoe »
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Offline VileZambonie

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Re: Should this do this?
« Reply #8 on: July 12, 2016, 08:41:01 am »
Yes, just check the fluid level in the trans.
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Offline philo_beddoe

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Re: Should this do this?
« Reply #9 on: July 12, 2016, 01:32:43 pm »
Ok, just a few ounces came out. I put it back in. Thanks..
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Offline philo_beddoe

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Should this do this?
« Reply #10 on: September 12, 2016, 09:51:56 pm »
Quote from: VileZambonie on July 10, 2016, 08:01:02 am
Is the driveshaft moving around in the tailshaft? Is the seal leaking? If so replace the bushing and seal.

Whoops, i just created another post on this topic, go ahead and delete "output shaft bushing". (Admin)

Anyway, ok, so how do we change that bushing and seal?
« Last Edit: September 12, 2016, 09:55:41 pm by philo_beddoe »
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Offline philo_beddoe

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Should this do this?
« Reply #11 on: September 13, 2016, 07:40:50 am »
New slip yoke, Ujoints and balanced dshaft---still have driveline vibe. Just ordered new tail shaft bushing and seal from summit.  And the saga continues.
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Offline VileZambonie

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Re: Should this do this?
« Reply #12 on: September 13, 2016, 11:06:10 am »
What are you feeling exactly? You have another vibration, when? When does it happen?
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Offline philo_beddoe

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Should this do this?
« Reply #13 on: September 13, 2016, 12:48:57 pm »
Its the same driveline vibe since before you did the motor. It starts at about 30-34 mph and peaks out at 45 mph. Rrrruuuuummmm, Rrruummmm, Rrruuummmm. There was bushing wear on my slip yoke. Went to CT Driveshaft and got a new yoke, and balanced the shaft, and my ujoints are perfect. Gonna try the new tailshaft bushing. I did some research and saw this to be common with the type of vibe i have.

If it still does it after the new bushing i'm leaving truck in your driveway!! Lol
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Offline zieg85

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Re: Should this do this?
« Reply #14 on: September 13, 2016, 12:57:49 pm »
How tight are your exhaust system hangers?
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