Okay guys, this is what we are looking at on these lower arms. I had the time to cut off the ball joint from my extra arms. Turns out that the tube they use is not as HD as I thought. It is only .060" wall!!!! I was not happy to find this. The DOM I use is .120". That's
twice the thickness. The problem you have is getting good penetration on
both pieces on steel. Get good penet on the thinner, and there might not be enough on the thicker. Get good penet on the thicker, and you can thin-out or eat through the thinner. There are ways around this. But require more time.
Because of this I do not feel that is worth exploring this any further. Sorry to get your spirits up only to drop them. I just see these things being problem matic. More leverage will be applied to the .060" and could bend/break. To do it right will require making
complete arms. I'm not one to do the work twice, so I'm not going to waste my time and attempt this, only to do it again in the near future.
Now, that being said, I'm sure that everyone is asking, "how much we talkin"? The answer is ZERO. As much as I like to help members out I cannot cut my own throat, and that is what I would be doing if I made and sold COMPLETE arms. By the time it would be all said and done, you'd be spending what you can get FullFlights for. And mine do not come with heims or tie rods. For me to sell them at a price that people would pay, I wouldn't make hardly anything. It is on my mind to make arms for myself, but, even then I'm still undecided. I'm really sorry guys. Was expecting more from this venture.