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Thread: ae71 gearbox to t-18 rear diff tailshaft

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    Senior Member kronix's Avatar
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    hey all i have a tailshaft that fits my car which has a ae71 gearbox and a t-18 diff, i wanted to replace all the uni's and center bearing as they are rooted. So after taking it to a few places they all told me that because that the uni's have peened over ends that they are a non serviceable item and that i will have to replace both the ends with new ones. They also said they could make me a one piece shaft out of 3 inch tube with the new serviceable but it could only handle 7200rpm

    I know ae71 gear box to T-18 diff is common to have and was wondering what other people have done with replacing the uni's and how many people are running one piece shafts????

    Cheers Wade
    Last edited by Sam-Q; 23rd September 2010 at 06:46 PM.

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    Moderator Sam-Q's Avatar
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    there you go Wade, thread fixed up
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    Veteran biggo's Avatar
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    Dont bother, the uni's alone cost $80 on accout price. either get a custom one or use the stocker.
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    Senior Member kronix's Avatar
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    yea but that's the problem I'm having. In my stock tail shaft all my uni's are rooted and I need them replaced but no one wants to do them as they are the peened over uni's. They can make me a custom one but it will only be good 7200rpm and The tailshaft is the last thing I need before the car goes on the dyno and I'm unsure what rpm they are going to rev my motor to as its a 4age with adaptronic and a few other goodies, the last thing I want is it to fail on the dyno.

    What are other people doing?

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    Veteran Andy San's Avatar
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    the tailshaft doesn't do the same revs as the motor because it has to go through the gearbox first... not sure on the revolutions at high speed though
    Andy

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    It is possible. What i did was buy 1 special uni and bash the old one out, put new one in and tack weld the cap on. Any proper mechanic place can do that but retail i think was $120 on the uni jount.

    or take your yoke to a better tailshaft shop and ask for a 1 peice in the stock length.
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    Veteran biggo's Avatar
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    Also, you can ream it out to fit normal unis, i havent done this befroe but im told its what some shops do.
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    Senior Member kronix's Avatar
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    yea 7200 in first gear and 7200 in other gears the tailshaft would be spinning at different speeds so I'm not sure, I'm just going by what they sed

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    Senior Member kronix's Avatar
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    yea i have been told that too but no one wants to seem to do that, I'm going to ring Hardy Spicer on Monday as they are meant to pretty good so I will give them a try.

    thanks for the replies guys... if anyone else has any other comments feel free to post

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    i used the standard ae71 tailshaft and from memory it was a non serviceable one as well
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