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Thread: Diff Whine - Making it quieter?

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    Veteran Golberg's Avatar
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    Default Diff Whine - Making it quieter?


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    I have in my sprinter a standard S-series which has travelled 290,000k's and whines like no tomorrow. Its not locked, nor is it going to be but I was wondering if anybody had any ideas on how to make it a little quieter, not after whisper quiet because that's not going to happen unless I get a new crown and pinion.

    Just interested in whether or not anybody had some good oil mixtures or something of that order to make it better?

    And I already know of the banana trick, I'm just after something which will last a little longer.

    Another random interest question, I have read that some rt81 Corona's may have 3.7 ratio s series. Can anybody confirm?

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    hey mate i got huge diff wine too, but whats the bannana trick? im very curious lol?

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    Veteran Golberg's Avatar
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    Well as far as I'm aware you essentially throw a banana inside the diff housing and the added thickness of the banana will stop the diff from whining. Until the banana is so mashed up that it thins out, then the whine comes back.

    Often used by dodgy used car dealers to shut the diff up for a short while before the car is sold.

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    hahahaha thats funny as lol, do u peel the banana first?

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    Senior Member --Redwork--'s Avatar
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    haha...

    Why not try it peeled and if it don't work throw a hole one in there just for good measure. LOL


    Don't know about any REAL cures Goldy... Though I have heard the banana skin one. Maybe something for myth busters to try out..
    Can't really get much thicker oil than diff oil so I guess just spend up big on a replacement diff..

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    Senior Member adam's Avatar
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    You're only supposed to put the banana peal in there as far as I know. So eat your bananas, don't let it go to waste. haha

    Edit: Redwork beat me to it...

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    Senior Member Simon-KE70's Avatar
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    lol

    your diff is fucked.... its worn out... as in there is no cure.

    the banana trick is complete BS too, its a myth thats been going around for years now.

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    yeah i dont really have faith in the bannana skin trick either lol!

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    Senior Member --Redwork--'s Avatar
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    If its fucked then it would hurt to try it then..

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    id recommend now is the time to go T series

    however if you want to try something, id recommend Nulon G70, or Lucas Diff & gbox treatment.

    both essentially thicken your diff oil, but at least its a product sold for the purpose rather than throwing random fruit in your diff

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