Summit racing tubular upper control arms

Discussion in 'Suspension, Steering, Brake & Wheel Topics' started by 75Maro, Jun 29, 2020.

  1. 75Maro

    75Maro Veteran Member

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    Wondering if anyone here has used the summit racing brand of tubular upper control arms on a 2nd gen. From what I read on the website they provide a corrected ball joint angle but don't use a taller ball joint, just a factory replacement. Cross shafts aren't offset either.

    Thanks for the help
     
  2. ULTM8Z

    ULTM8Z Veteran Member

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    You certainly don't need expensive control arms to see a big improvement in performance for a street driven car.

    I got what many would consider to be "cheap a$$" UCA's (and used on ebay to boot) and frankly I was astounded at how much improvement I got over the factory arms. Performance Online.

    As long as they're good quality construction and can get you about 6 deg caster you'll see a remarkable improvement in handling, steering self-centering, ability to track straight, etc.

    Plus you can't go wrong with Summit in terms of them standing behind their products.
     
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  3. flht99b

    flht99b Veteran Member Gold Member

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    IMG_20200630_083100931.jpg
    These are Summit uppers on a 71. Rubber bushings, no offset cross shaft, stock length ball joint. Easily obtained 6.2 degrees positive caster with .5 degrees negative camber. 9k miles so far, no problems.
     

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  4. 75Maro

    75Maro Veteran Member

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    Wow those specs are great. What benefit does and offset cross shaft bring, does it just eliminate the shims?
     
  5. 75Maro

    75Maro Veteran Member

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    Also, did they come with that rubber bump stop shown in the picture?
     
  6. BonzoHansen

    BonzoHansen Administrator Lifetime Gold Member

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    What aftermarket arms use offset shafts? I would think the design of the arms themselves would make offset shafts irrelevant.
     
  7. 75Maro

    75Maro Veteran Member

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    After reading up on the PTFB arms and talking to them about a few items it looks like they use offset shafts on their arms.
     
  8. 70-camaro

    70-camaro Veteran Member

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    I have a pair of PTFB uppers with tall ball joint on the way. Also delrin bushings for the lowers.
     
  9. flht99b

    flht99b Veteran Member Gold Member

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    Yes, came with the rubber bump stops. These were purchased by a guy several years ago for a project that didn't happen.
     
  10. rburrow87

    rburrow87 Veteran Member

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    Interesting, my Summit arms came with offset shafts. I got them this year.
     

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