77-308--a-arm bushings--is there a more economical solution than ES? | FerrariChat

77-308--a-arm bushings--is there a more economical solution than ES?

Discussion in 'Technical Q&A' started by greg328, Dec 27, 2004.

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  1. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
    Full Name:
    Greg
    I'm about to replace my coil-overs, so I figure I might as well replace my a-arm bushings while I'm in there.

    Energy Suspension sells theirs for $20 a pop. Multiply by 16 and it gets expensive. Anybody know of a less expensive alternative, like an identical part for a Volkswagen or something that's interchangeable?

    I know, Ferrari bushings are double that, but I always like to explore smart alternatives....

    Greg
     
  2. tbakowsky

    tbakowsky Two Time F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    20,034
    The Cold North
    Full Name:
    Tom
    Not really..And remember The front and rear arm bushings are different..(see Paul Newmans restoration thread to see the bushings).
     
  3. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
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    Greg
    Well, I hear the front and back bushings are different, but several F-chatters claim that the Energy Suspension poly bushings (3101G) work all around.

    Can anybody confirm or deny this?
     
  4. tbakowsky

    tbakowsky Two Time F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    20,034
    The Cold North
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    Tom
    Trouble is..there are different diameters to the bushings. The ones in the front are slightly larger in diameter then the rear (or the other way around I can't remmeber). They will go in with a press..but they are not the correct busing. I hounselty belive that there are differences in the rubber compounds. 1 Reason being is there is much more weight on the rear then on the front.
     
  5. gva

    gva Rookie

    Jul 16, 2004
    37
    Melbourne Australia
    Full Name:
    Graeme Vincent
    Ferrari rubber bushings differ in load ratings front to rear. Steel bushings are available, simular to rear outer pivots. Maintaince can be issue.
     
  6. Dave

    Dave F1 Rookie

    Apr 15, 2001
    2,722
    Little Rock
    Full Name:
    David Jones
    The 77 uses the same inner control arm bushing for the front and rear.
    As far as a more economical solution,
    drive the car with worn out componets.
    Or you might price original Ferrari bushings.
    If $320.00 for bushings is getting you down,
    just wait till the expensive parts replacement pops up!
     
  7. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
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    Greg
    Dave,
    By "inner control arm bushing", do you mean the 16 a-arm bushings that I'm talking about? So the 1977 308 uses the same all around? That's great news!

    Greg
     
  8. MManzonelli

    MManzonelli Karting

    Nov 4, 2003
    82
    Columbia, IL
    Full Name:
    Mark Manzonelli
    I was involved in the Quantity Discount BUY. I know for a fact that every 3o8/328 we purchased for has the same SIZE bushings front and rear. If you order from Energy Suspension get the same size. DO NOT TRUST what Energy Suspension tells you. They do not know!!! Many of us got screwed in the deal because they told us we had different SIZW bushings in the front versus the back. This is incorrect.

    What I will tell you is that Ferrari has different part numbers for the front versus the back but, they are THE SAME SIZE!!! I was told that there composition was different.

    Other than Energy Suspensions customer service is terrible, the diffrence in my car when I changed the bushings is NIGHT and DAY. The car is so much better. I reccommend the product....NOT the manufacturer.

    The 308/328 series require 16 3101G Bushings.

    I will be happy to answer any questions you may have.

    Mark Manzonelli
    1986 328GTS
     
  9. tbakowsky

    tbakowsky Two Time F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    20,034
    The Cold North
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    Tom
    #9 tbakowsky, Dec 28, 2004
    Last edited by a moderator: Sep 7, 2017

    Then why are they so different, and why do they have different part numbers?
    Image Unavailable, Please Login
    Image Unavailable, Please Login
     
  10. greg328

    greg328 F1 Rookie

    Nov 17, 2003
    4,209
    Austin, TX USA
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    Greg
    Mark,
    Awesome post. Thanks so much for the info.

    I just ordered 16-3101G bushings from suspension.com (Modesto, CA).
    I appreciate the info, and I'm glad to hear from you that I have no cause for concern regarding fitment.

    I'm looking forward to the handling improvements!

    Greg
    1977 308 GTB
     
  11. MManzonelli

    MManzonelli Karting

    Nov 4, 2003
    82
    Columbia, IL
    Full Name:
    Mark Manzonelli
    Greg,

    You are welcome...

    Tbakowsky,

    That bushing on the right is like nothing I ever saw when I replaced my bushings. It does look to me that they are the same diameter though. Again, I have yet to see any 308/328 that has different SIZE bushings front to rear. Different part numbers... yes, but never different size. I'm not saying it never happened (because you never know what Ferrari does) but I am just saying I have never seen it.

    Regards,

    Mark Manzonelli
    1986 328GTS
     
  12. tbakowsky

    tbakowsky Two Time F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    20,034
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    Tom
    Mark..There is a 15 thou difference in the diameters of the bushings..and the heights are different as well. There is quite a difference in the bushings from front to rear. The bushings in the pic are direct from Ferrari. This is the reason they have different part numbers. The rubber is also of a different compound to support the exrta weight in the read due to the engine and trans weight. Ferrari made these bushings like this for a reason. There really is zero doubt that the bushings are different.
     
  13. Nuvolari

    Nuvolari F1 Veteran
    Owner Silver Subscribed

    Sep 3, 2002
    6,663
    Toronto / SoCal
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    Rob C.
    I pulled all my bushings out today and measured them with a caliper. They were all exactly the same and there is no doubt that they are 100% original. Still with that said, I cannot account for the difference front and rear with the Ferrari part numbers.
     
  14. Rock

    Rock Formula 3

    Nov 9, 2003
    1,652
    Toronto, Canada
    Full Name:
    Rocco
    In the past fifteen years of servicing ferrari's, I never removed two different
    bushings from a 308(front/rear). The bushing with the shaved sholders was never installed on a factory 308. As for the economical way out, buy a dodge.
     

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