Lower control arm bushings

Mopar General Discussions

  1. backfire

    backfire Member

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    Those of you who have been running a polyurethane lower control arm bushings my question is how well have they held up? I'm building a circle track car and I'm trying to decide between polyurethane and rubber for the lowers.
     
  2. krazykuda

    krazykuda Well-Known Member FABO Gold Member How-To Section Editor

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    I tried polyurethane bushings on my daily driver 68 Barracuda in Detroit, and ended up having to replace them in 3 years and went back to rubber... The poly's could not take the abuse from all of the pot holes in the roads out there...
     
  3. Plymouth 65

    Plymouth 65 Floorable Deplorable

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    For a street car daily driver, rubber. Race car poly! IMO 65'
     
  4. kursplat

    kursplat FABO Gold Member FABO Gold Member

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  5. ir3333

    ir3333 Well-Known Member

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    almost all i have seen are cracked or deformed after a few years.I have taken oem vulcanized rubber bushings out of 40 year old A arms and some were still adequate.
     
  6. autoxcuda

    autoxcuda Well-Known Member

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    My poly LCA’s have been in since 1997

    I messaged them to fit properly though

    6088649-PolyLCAbushings.jpg
     
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    • MopaR&D

      MopaR&D Nerd Member

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      If you go with poly LCA bushings you kind of need adjustable strut rods to make them work properly. I've had the same pair of poly bushings on my Duster for about 7 years and 20k hard miles including track days (autocross/road racing stuff), no issues. I initially installed them using the stock strut rods but kept having weird pulling issues with the brakes, added adjustable strut rods a few years back and holy cow it's so much tighter and more responsive under braking and is much more stable when braking and turning at the same time.

      In a nutshell, if using rubber bushings, keep stock strut rods. If going poly, get adjustable strut rods as well.

      And in case someone argues there's no way for a poly bushing to keep the LCA from sliding backwards, and they probably will, it's physically impossible for it to move back unless you disconnect the strut rod entirely. Literally cannot happen and has never happened. I won't waste time explaining the dynamics of it unless someone brings it up LOL. Same goes for adjustable strut rods binding up the travel of the LCA due to the slightly relocated pivot point, it's not a real problem just a figment of people's imagination.
       
    • QuickDart360

      QuickDart360 Well-Known Member

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      Been running poly energy suspension lowers on my dart sport for years. 1st set on one side took a dump within like 6 or 8 months. Being hard headed replaced with same and have been doing good for like 8 years now!!:)
       
    • backfire

      backfire Member

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      Thanks for the replies you've given me alot to think about.
       
    • 512Stroker

      512Stroker We are all here because we are not all there.

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