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High Speed Vibration... I need a checklist!

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Old 03-20-2010, 09:40 AM
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The tailshaft has to come off for you to get the bushing out.
Old 03-20-2010, 10:00 AM
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so the trans has to be dropped? I figured at that point id just send it to tick for a nice stage 2 rebuild
Old 03-20-2010, 11:31 AM
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Originally Posted by wrd1972
I had my DS balanced at two shops locally. Each swore the thing was balanced and took my money. High speed vibe remained each time.

I sent the DS to PST and had them do it. Problem solved.
Sorry for having to ask this but who/where is PST. I need my DS balanced and I need it balance right the first time.

Thanks
Old 03-20-2010, 12:14 PM
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Originally Posted by ThoR294
so the trans has to be dropped? I figured at that point id just send it to tick for a nice stage 2 rebuild
No you can unbolt the tailshaft and snake it out. It will try to hang up on the gears when pulling it out but you can get it. This bushing is bronze and you dont want to beat it in with a socket and hammer. I have had good luck using a bearing race installer of the correct size and a hydraulic press. The press its needed NOT bc its such a tight fit, but because its a rather delicate piece and the press provides a smooth application of force. It could be done without a press if needed, but you would run the risk of damaging the new bronze bushing IMO.
Old 03-20-2010, 12:42 PM
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so this bushing could cause my vibration?
Old 03-20-2010, 12:50 PM
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If it was loose or excessively worn, then yes I could see that as possible. There is actually an upgraded bushing you can get from a sponsor here thats about $50. It has more surface support area for the DS yoke. I think its made by Rockland or something. I cant remember and I was doing it for a friend so I didnt know a lot of the details.
Old 03-20-2010, 01:09 PM
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I have heard mixed reviews about it.. I have one... I was thinkin about throwing in a $10 zone one and see if it fixes the vibration
Old 07-02-2010, 10:44 AM
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Originally Posted by ThoR294
bump. is the tailshaft bushing doable on the car? lol im still chasing this vibration btw
Yes, pull the rear tranny housing off and take it to a tranny shop. Mine does it for $35.00 installed.

I am still schasing this 85MPH vibe that gets worse the faster you go. I just put a new tailshaft bushing in. The tires were re-balanced and the PST DS was rebalanced. DS angles are equal too. WTF else is left?
Old 07-02-2010, 02:18 PM
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Subscribing, I am part of this horrible club, balanced wheels, balanced DS, fresh built rear end..... Still no end to the 110 MPH + vibration. Bad thing is it started when the rear end was built and I put in some used Moser axles, I just discovered that one of them is bent so im hoping that is what the problem is. I have about 4 spare axles at home but one is bent and I dont remember which one it is lol.



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