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  • Welding a control arm

    I want to change the front end geometry on my stock car. I want to know if I cut the control arm and weld it so the ball joint is in a different location, an inch or two back will it be strong enough to stand up to the beating a dirt car is subjected to or will the weld break. This is definitely a safety issue so if I do it I want to be sure to get it right. Thanks in advance.

  • #2
    Originally posted by Stock Car View Post
    I want to change the front end geometry on my stock car. I want to know if I cut the control arm and weld it so the ball joint is in a different location, an inch or two back will it be strong enough to stand up to the beating a dirt car is subjected to or will the weld break. This is definitely a safety issue so if I do it I want to be sure to get it right. Thanks in advance.
    If you have to ask this question, you are definitely not qualified to do the job.You will be endangering the lives of all others on the track with you, and I can't understand why any reputable racing authority would allow this sort of modification on the track.

    The original control arm was engineered and tested with a generous safety factor by a responsible manufacturer. The same thing needs to be done with any modification such as you are proposing. There are shops and engineers who do this sort of thing, and it is not something done in a backyard environment. Take it to them in spite of the expense, and avoid endangering others.

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    • #3
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      I'm only agreeing with the comment, "
      If you have to ask this question, you are definitely not qualified to do the job." , somewhat.

      Anyone who knows racing knows it's history of modifying stuff and not all of it was engineered. Most of it is done was done by the inexperienced, lacking the best equipment or understanding of what works and how. But they did it anyways.

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      • #4
        Originally posted by oldguyfrom56 View Post
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        I'm only agreeing with the comment, "
        If you have to ask this question, you are definitely not qualified to do the job." , somewhat.

        Anyone who knows racing knows it's history of modifying stuff and not all of it was engineered. Most of it is done was done by the inexperienced, lacking the best equipment or understanding of what works and how. But they did it anyways.
        Lots of old scary stuff done is old days, that is why we have race organisations and safety standards, to keep people from repeating same mistakes.....

        Dale
        "Fear The Government That Wants To Take Your Guns" - Thomas Jefferson..

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        • #5
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ID:	706194I say weld it. Beats the heck out of glue, screws, nail, tape or tie wire. If it breaks, you did it wrong. Figure out why that was and do it again only better.
          Welding is a fit for purpose application joining two pieces together. Most control arms are a stamped punched and pressed mild steel. What's the problem other then the mans ability, the equipment available and his fear of doing?

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          • #6
            My suggestion would be to take it to a professional shop that has experience in the proceedure and have them do it for you.

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            • #7
              Look on youtube...I don't know where. A guy takes apart a control arm and shortens it. and then gussets the crap out of it. He works in a low-rider shop and literally builds flying machines. A 2 ton car jumping in the air...that is some stress. They do that service for people...and also show what they do, thereby showing that it is an extensive service

              I think that the control-arm is for an Impala.

              Put this search in "welding lower control arm mounts" and you will get some info.

              Look at these https://www.youtube.com/watch?v=zYSkuZxqJGI

              in this video we will show you how we extend upper a arms for a lowrider to gain that extended look (bulldog stance) as people call it! please call for quote...

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