Ive made a few sets, that im sworn to secrecy on lol. I did one set full CNC from a solid chunk of aluminum. the others were "Plate" style, boxed and honey combed.
I can't say what I am doing because it is retarded and probably shouldn't be done but I am going to do it anyway hahaha. But what I am thinking is if I do a LS1 swap then I am going to use my 2nd Gen RX7 rearend and I will want a plated and welded set of control arms with heim joints to mount to the frame. But if I keep the stock 4 cyl then I am going to want a set of billet control arms and a billet 4 link with heim joints for all the mountin points. This is for my 83 Mazda B2000.
I am sure the aluminum 4 link is great, what I am talking about that is completely retarded is the other thing I am going to do that I can't discuss. I would be really pissed if I posted my idea and someone else with more money built it before me! hahaha