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Thread: Overdrive-induced deafness. Cures??

  1. #31
    Join Date
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    Quote Originally Posted by PAT303 View Post
    I have had both O/D's and both were noisey PITA things to have,I sold them and fitted RRC diff centers and off road I didn't notice they were any worse but on road they were miles ahead,quiet and smooth and I would never have an O/D again ever.If you do need lower Low range gearing fit rover P6 saloon centers,they are 3.9 ratio. Pat

    Thanks, Pat. Forgive my ignorance of Rangies, but what was the diff ratio? 3.54?

  2. #32
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    Offender90 on here is an acoustic engineer. He has posted info on soundproofing and materials a few times. I am sure he would be happy to point you in the right direction.

    He has some info on barium loaded vinyl materials and other stuff which is much better than anything you can get at clark rubber.

  3. #33
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    Hey I have been thinking, when one reads of additives like Slick 50 or Redline or Wynns "damaging" a gearbox, what does this actually mean? My understanding with Slick 50 is that it bonds to the wearing surfaces and reduces friction, so I don't really understand what sort of damage can result....

    I know it's a bit of a futile hope with regards to noise reduction, as so many have been down that path before, but I would still be tempted to try an additive, except that I'd hate to ruin the overdrive.

    John

  4. #34
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    I reckon you should just harden up.

  5. #35
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    Quote Originally Posted by wally View Post
    I reckon you should just harden up.

    Skinny little farmer.

  6. #36
    Bunjeel Guest

    Bunjeel

    I'm relieved. I thought it was just mine that howled. I tried the Teflon additive and it quietened it a bit but not much. My final solution was to fit a headphone socket to the stereo.
    Cheers -

    71 SWB Series IIA

  7. #37
    Join Date
    Feb 2007
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    Instead of Slick50 or any of the other additives, get a witch-doctor to cast a "silencing spell" on your overdrive - it's cheaper and the effect is the same (and the science behind the process just as sound).

  8. #38
    Join Date
    Jan 1970
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    South Australia - Port Pirie
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    Hi there

    I have only had two series Land Rovers which had overdrives fitted....

    THE ONLY WAY TO TO STOP THE NOISE - is to remove them, and poeple pay big money for them (And I dont know why).

    Sorry to be blunt - but they noise they make is terrible, worse in a hard top.


    My views

    Wayne

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