My Carbon axle has the Currie name and logo on it. I'm happy with the axle. I went with them because they were local. They let me walk through their shop, and showed me around. Customer service is incredible. Also, I did break a shaft. They responded immediately, and Fedexed a replacement.
My son has a JKU now and we're building it. He is going with 40s. Honestly having a hard time deciding between Fusion and UDs.
I have MetalCloak shocks and springs. For the price I paid, I can't complain. But nothing else from them impresses me. Seen too many issues on the trails, especially with the 6 packs. Highly recommend a different route there.