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Thread: Polyurethane or not?

  1. #1
    Join Date
    Jun 2019
    Location
    South Australia
    Posts
    5

    Polyurethane or not?

    Thoughts on using ploy bushes in suspension overhaul on series one.thanks john

  2. #2
    Join Date
    Mar 2007
    Location
    Warwick Qld
    Posts
    1,858
    Factory rubber ones lasted for 70 odd years, why consider anything else?
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    1999 Disco TD5 ("Bluey")
    1996 Disco 300 TDi ("Slo-Mo")
    1995 P38A 4.6 HSE ("The Limo")
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  3. #3
    Join Date
    Aug 2007
    Posts
    1,399
    Polyurethane are good for holding things rigid for the race track. Black rubber allows a bit more movement for offroad articulation. I would choose original style black rubber.

    Aaron

  4. #4
    Join Date
    Feb 2014
    Location
    Sydney
    Posts
    949
    Iím a fan of rubber as well but quality rubber is hard to find
    I went through 3 sets of supposedly OEM panhard rod bushes on my Perentie, Finally fitted poly and no more resultant death wobbles.
    Phil B

    Custodian of:
    1974 S3 swb wagon (sold)
    1978 S3 swb canvas
    48 749 '88 4x4 Perentie
    1985 County with 4BD1T

  5. #5
    Join Date
    Jul 2011
    Location
    Yarrawonga, Vic
    Posts
    5,715
    Recently fitted parabolics from GB Springs , they advise not to use poly , springs come with rubber bush pre installed. They have held up during my testing so must be good ones.

    I did not bother changing the chassis bushes , they are still perfectly serviceable after 45 years, didn't want to risk putting 'indian rubber' in there.

    this from GB springs

    We also do not fit polybushes as we feel from our development work that they will not give a noticeable improvement in suspension performance, we will supply springs without bushes for you to fit your own polybushes. We do feel that whilst polybushes last longer than rubber to metal bonded bushes there is no such thing as a "free lunch", hence the forces that normally wear out the rubber to metal bonded bush must go somewhere and normally with poly bushes they go into the chassis and the chassis will show wear (i.e. Oval holes) at the linkage.




  6. #6
    Join Date
    Oct 2014
    Location
    Northern NSW.Australia
    Posts
    1,494
    I did poly.
    Original Type depends on where it is made

    whitehillbilly

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