SPC Upper Control Arms. ACTUAL USERS feedback wanted, opinions welcome too.

Brakes, Steering & Suspension

  1. biomedtechguy

    biomedtechguy Accelerati Rapidus Maximus FBBO Gold Member

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    I have read through the posts on these SPC UCAs, and full disclosure I purchased a complete QA1 front suspension system including their K-member.
    The ONLY part that isn't QA1 is the UCAs, which are by SPC.
    The recurring problem I've had with the factory front suspension is not enough adjustment in the stock UCAs. The SPC UCAs certainly do not suffer from a lack of adjustability.
    I would really like comments from people who have actually used the SPC UCAs, but I also welcome opinions.
    I hope to be able to get the front suspension system installed in the next few months.
    My car is a 70 Roadrunner, 440+6bbl, and my primary uses are cruising the street and I hope to eventually hit the 1320 once or twice a month. For now, I only race about 4 times a year.
    Thanks.
    Screenshot_20190913-083332_Chrome.jpg
     
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    • flypaper

      flypaper FBBO Gold Member FBBO Gold Member

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      put SPC control arm failure in google :fool:
       
    • biomedtechguy

      biomedtechguy Accelerati Rapidus Maximus FBBO Gold Member

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      If you found Mopar specific failures of this part, please post links for me and for anyone else who may read this thread!
      Lots of Tacoma issues before a redesign.
      Also 4 Runner results.
      Here's a few links regarding Mopars and SPC that I found, but I cannot find any B-body Mopar SPC UCA failures.
      https://www.spcalignment.com/component/content/article?id=370

      https://board.moparts.org/ubbthreads/ubbthreads.php/topics/1423519/3.html
      Budnicks is one of the people I trust. Here is a post he made some time ago:
      https://www.forbbodiesonly.com/mopa...-alterkation-suspension.91245/#post-910249516
       
    • flypaper

      flypaper FBBO Gold Member FBBO Gold Member

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      When I get a chance later
      I will look.
      You will probably be okay with them.
      You can break any part if you try hard enough

       
      Last edited: Sep 13, 2019
    • biomedtechguy

      biomedtechguy Accelerati Rapidus Maximus FBBO Gold Member

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      I would really appreciate it.
      I believe that I have done due diligence. I'm not the type to ask questions without having tried to find the answers, unless I just want to generate conversation.
      I'd hate to be taken out of commission and not be in "that other forum" we frequent to contribute there....
       
    • tlt23

      tlt23 Well-Known Member

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      I have bought a set, got a good deal, they look nice, but think that I am going to buy the firm feel ones that have the geometry set. I guess I am just nervious about getting some to set it up right.

      Will be watching to see all the thought from the masters here.
       
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      • dan juhasz

        dan juhasz FBBO Gold Member FBBO Gold Member

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        Not SPC but still may apply. I bought a set of magnum force tubular uca's. After I installed power steering in my 66 Coronet I thought the steering would benefit from increased caster. I have come across mixed results almost every time I try to change the way things were engineered in older cars. Steers straight , wants to go straight, but when you turn off center it feels unusual, as if getting off center is difficult then almost wants to continue to turn , over steering. I didn't go crazy with the settings either , first 4 degrees positive then down to 3 degrees. Not crazy about the feel, have considered going back to the factory uca.
         
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        • 451Mopar

          451Mopar Well-Known Member

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          Put a set on my friends '68 Barracuda. He bought them, and they seem fine. Just need to find an alignment shop that knows how to adjust them.
          We used a fast-track alignment tool, and got the alignment better than the shop that screwed it all up.
          On my Coronet, I just used stock upper arm with adjustable strut rods.
           
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          • 66 Sat

            66 Sat Well-Known Member

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            I looked at these as I need an adjustable uca to get the correct camber due to another issue. I was advised to avoid by the local suspension shop that has the best reputation around here - he reckoned they were Chinese junk. My concern was the number of points of adjustment, it seemed like too many places to come loose or have movement. Hotchkis have a better quality looking option but are very expensive (photo below). For the time being I'm living with the neutral/slight positive camber as apart from looks, it doesn't seem to affect the stability and I don't corner that fast anyway.
            1110U-A.jpg
             
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            • 5wndwcpe

              5wndwcpe Huge Member FBBO Gold Member

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              I used Firm Feels tubular UCA's on the last two cars I did. I'm happy with them though the best I could get was 3 1/2 * caster. Still, far, far better than stock.
               
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              • biomedtechguy

                biomedtechguy Accelerati Rapidus Maximus FBBO Gold Member

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                Screenshot_20190914-100352_Google.jpg
                BIG difference in price!
                EDIT! The Classic Industries price for the SPC UCAs is EACH. I shopped around and got a PAIR of the SPC UCAs for around $360!!
                I'm not known for looking for the cheapest parts for my Roadrunner. It is a primary source of enjoyment for me, and although I have no plans to sell it while I'm alive and can drive, it is an investment too.
                I'll admit, the Hotchkis parts look very nice, but at that price, I am going to have to go with the SPC UCAs that I have.
                 
                Last edited: Sep 14, 2019
              • biomedtechguy

                biomedtechguy Accelerati Rapidus Maximus FBBO Gold Member

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                Any one else have 1st hand experience with the SPCs? Anyone know someone who is using them on their B-body Mopar?
                Other Mopar applications?
                Thanks to all for the replies!
                 
              • biomedtechguy

                biomedtechguy Accelerati Rapidus Maximus FBBO Gold Member

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