Assuming you're not going to swap out for RVCs, the CTMs are basically bulletproof, you'll snap the shafts first. There are a couple others out there too, Nitro & OX come to mind. OTOH, the 760x's are pretty strong and will work just fine. They're the standard u-joint on the old D44s. (Used to be coded 297x.) Those shafts are pretty stout. Spyntec specifies them on their manual hub conversions for the JK, even the Rubis. Whatever you chose, by all means use the full snap rings.