Man.. thank you for your expert opinion, I greatly appreciate it. 1st off it's not about the money for the 67 only Idler arm its about availability of quality ones, and the fact that it's a 1 hit wonder 1 year only part leaning solely on 1 bracket that can wear over time. Google really could be your friend here on these very forums there is the mod posted. 68-76 idler arm mount locator
So you are going to all this time and trouble because you don't want to pay for a 67 Idler arm? And you think someone is going to weld the 68 up brackets in the right place? Good luck.