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Tailshaft bushing replacement write-up?

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Old 05-27-2010, 11:09 AM
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Default Tailshaft bushing replacement write-up?

I have a t56 that I need to replace the tailshaft bushing on before I put it in my car. I was wondering if anyone has a write up on how to do it... Im very nervous about touching this transmission... lol Thanks!
Old 05-27-2010, 01:27 PM
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Originally Posted by ThoR294
Im very nervous about touching this transmission...
I think that should give you your answer.... ;-)

You need to pull the tailhousing off. Knocking out the old bushing is easy, but you need special tools (or GREAT luck/care) to install the new one without damaging it. Finally clean and reseal the tailhousing back onto the trans. Not a major task, but not a DIY/first-timer's task either...

My $0.02
Old 05-27-2010, 04:57 PM
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I work on cars everyday, but never take apart transmissions lol. I just like having some kind of instructions, makes me feel better haha. TY for the info. Hopefully this will eliminate a vibration ive been chasing
Old 05-27-2010, 08:03 PM
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You can drive one in and hope it doesn't distort. If it does, don't ask questions, just get or borrow the right tool:
https://ls1tech.com/forums/manual-tr...g-trouble.html

I never had a problem w/ any GM 27 spline output tailhousing bushings in autos or manuals. One T56 tailhousing made me a fan of the tool.
Old 05-28-2010, 09:45 AM
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has anyone had this bushing cause a bad driveline vibration?
Old 05-28-2010, 10:19 AM
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Originally Posted by ThoR294
has anyone had this bushing cause a bad driveline vibration?
Anything's possible,but typically the bushing is an affect, not a cause of vibration. An out-of-balance driveshaft, bad u-joint, bent/twisted outputshaft, pinon, etc. cause the vibration and the bushing takes a beating by the slip-yoke.
Old 05-28-2010, 10:55 AM
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I had a piece of pipe modified & machined to the correct diameter, and it works perfectly. I think I paid 20 bucks or so. It is used with the shop press. I found that it is best to use a press as opposed to hammering it in. This way you will avoid damaging the top part of the bushing.
Old 05-29-2010, 08:11 AM
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Originally Posted by 85MikeTPI
Anything's possible,but typically the bushing is an affect, not a cause of vibration. An out-of-balance driveshaft, bad u-joint, bent/twisted outputshaft, pinon, etc. cause the vibration and the bushing takes a beating by the slip-yoke.
2 diff driveshafts, one of which was balanced, new u joints. rear rebuilt. etc.

I had 2 diff transmissions in my car. One is rebuilt and thats the one im going to put the new bushing in.... ugh.

and ty for the info guys... imma put the bushing in the "rebuilt" trans (got the rebuilt one off ebay) and see if it changes my vibration



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