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Thread: Driveline Vibration

  1. #1
    Grumpy Old Man
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    Exclamation Driveline Vibration

    Car harsh on acceleration or deceleration?

    Most people point to the Centre Bearing as the culprit but even a badly worn/floppy one is seldom the cause.

    Check that the Rear Bonded tube in a tube hasn't slipped out of phase, just sight along the Uni joints they should all be perfectly in line.
    (common failure with these cars)

    A good "fix" for this issue is to take the shaft to a DS shop and have them replace the bonded rear section with a tube making the DS a true 2 piece.


    (thanks to Gaboon for the pic)

  2. #2
    Supramania Regular
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    Default Re: Driveline Vibration

    Both ujoints should be centered in the "GREEN" line....the redline is showing how far out of phase the rear bonded tube slipped!

    This caused my car to shake really bad at 40+mph....not only that but it wiped out the transmission tail housing bearing "bearing that the outside of the driveshaft yoke slips into behind the oil seal"....this also destroyed my centre support bearing!

    This was in an 87 na...but also goes for gte cars as they use the same rear halves...

  3. #3
    Droppin that JZ in soon!
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    Default Re: Driveline Vibration

    I've never thought to check it. This is a great sticky as it doesn't often get realised as you pointed out.
    Warning: Speed ratings apply only to the tire, not to the vehicle. Putting a speed rated tire on any car does not mean the car can be operated at the tire's rated speed.
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  4. #4
    916supra
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    Default Re: Driveline Vibration

    hey guys where do i get a aftermarket 7mge drive shaft at ? thanks
    86.5 SUPRA 3.0 N/A
    91 BEAST ACURA LEGEND 3.2

  5. #5
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    Default Re: Driveline Vibration


  6. #6
    787m
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    Default Re: Driveline Vibration

    Quote Originally Posted by str8sixer916 View Post
    hey guys where do i get a aftermarket 7mge drive shaft at ? thanks
    Check your yellow pages for a drivetrain shop or 4wd shop. I had my 2pc shaft turned into a 1pc shaft and balanced for $151 after tax. It's quite a bit lighter and has a much better feel overall. Also one less u-joint and that bs center bearing to worry about

  7. #7
    Grumpy Old Man
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    Default Re: Driveline Vibration

    Quote Originally Posted by 787m View Post
    Check your yellow pages for a drivetrain shop or 4wd shop. I had my 2pc shaft turned into a 1pc shaft and balanced for $151 after tax. It's quite a bit lighter and has a much better feel overall. Also one less u-joint and that bs center bearing to worry about
    yeee haaa pardner...

  8. #8
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    Default Re: Driveline Vibration

    any negative draw backs of switching to a 1 piece?

  9. #9
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    Default Re: Driveline Vibration

    On paper there are negitives....and for record breaking high speed runs then a single aluminum would be a bad choice...with that said 100's of people here are running them and no reported issues as of yet...including myself

  10. #10

    Default Re: Driveline Vibration

    I have a vibration problem also, its very very loud at 80mph and is definently coming from the rear. Im wondering weither or not i should buy a new driveshaft from shaftmasters or just replace the bearing if thats even the problem

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