Well, first off, Mopars do not use Rag joints. A rag joint is used by GM. So what they use is a coupler. So this is a coupler option. Actually a Heim joint, NOT a CV joint. Constant velocity. JMO...Ah that’s a rag joint eliminator, yeah those are expensive. But there’s cheaper, just as good options out there. I used a Universal Cv joint and a DD shaped steering shaft on the dart. I’m doing the same thing on the polara, ordered all the parts already, just haven’t done it to it yet. Doing so will allow me to run the Fox body headers in my poly powered Polara