Chassis Stiffening? Or Maybe Suspension?

Discussion in '2010 - 2014 Specific Tech' started by flubyu, May 20, 2014.


  1. flubyu

    flubyu Member

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    I thought I would turn to the forums on this one. Just bought a 2013 GT Convertible after trading up from a 2012 GT Coupe. I am noticing the live -axle a bit more in the convertible than I did in the coupe. I am also getting little rattles here and there and a bit more body roll in turns.

    What can I do to mitigate this? Is this a chassis issue or a suspension issue? In either direction, what might my best course of action be? Ford Racing has a complete handling package for the convertibles that I am considering. When I looked into chassis stiffening, the majority of products out there are for coupes.

    What to do...
  2. SpartaPerformance

    SpartaPerformance Site Sponsor

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    You can try suspension kit, I have the FRPP kit on my coupe and I love it!! What you have to figure out is it suspension sloppiness or chassis flex you're feeling? IF I"m not mistaken coupes on cnvrts have same shock and spring rates (somebody chime in if I'm wrong) so if you're feeling flex the kit won't help you.
  3. earleys94gt

    earleys94gt Active Member

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    What about something like some sub-frame connectors?
    http://www.americanmuscle.com/bmr-subframe-0512.html

    The only difference, I can think of, between the coupe and conv't would be if the conv't has some kind of OEM "x brace".

    I would imagine almost any kind of sub frame or suspension "brace" would improve the feel of the car.
  4. Gearbanger 101

    Gearbanger 101 we love us some gays up here Super Mod

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    A strut tower brace would certainly help. Convertibles tend to be more prone to "cowl shake" than hard tops do.

    I'm actually quite surprised that nobody makes a nice 3-point brace for the S197's like they do for earlier models?
  5. flubyu

    flubyu Member

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    Gearbanger: Mine is a Premium so it has the factory strut tower brace (thankfully)

    earleys94gt: I'll have to do some more research off of that link. In the product description it reads "Will also fit convertible Mustangs if rear bracing is removed." Haven't been under the car recently so I am not quite sure what that means or what sections they are recommending removing here. I would imagine the connectors would be an improvement though.
  6. flubyu

    flubyu Member

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    Sparta...how's your experience with the FRPP pack? I was looking into that as well since Ford will warranty the suspension pack and for the convertible it's less expensive. Plus I have read a lot of great reviews.
  7. SpartaPerformance

    SpartaPerformance Site Sponsor

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    I love mine!!! I had triple digit speed stability concerns, (ROFL) she I got the car, that kit cured that!!
  8. Sharad

    Sharad ALWAYS choose the V over the P!!! Wait... what? Site Sponsor

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    Subframe connectors can't hurt, but rear control arms and panhard bar will make the biggest difference.
    85rkyboby likes this.
  9. 85rkyboby

    85rkyboby Active Member

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    I thought those cars come with a panhard bar?
  10. Sharad

    Sharad ALWAYS choose the V over the P!!! Wait... what? Site Sponsor

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    They do, but the stock PHB is flimsy, and has soft rubber bushings.
  11. 85rkyboby

    85rkyboby Active Member

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    After I thought about it, I was like damn! Ha-ha You are suggesting upgrade both items. Sorry I'm still stuck in the fox life, just trying to learn.
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  12. flubyu

    flubyu Member

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    After doing some research across the web and other forums, their are not many ways to stiffen the car up. The s197 platform seems to be a much stiffer platform than previous generations and things like sub-frame connectors don't have the same effect they used to in say my old 1994 GT.

    I am digging the idea of LCA's and the panhard, probably just LCA's to start. Anybody have experience and could recommend? I have been looking into Steeda's even though they are on the higher end, but I have had great success with their products in the past.
  13. 85rkyboby

    85rkyboby Active Member

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    UPR & MM
    Sharad likes this.

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