I see the tie rod down on the factory arm, that's good for strength...most of the time when they break like that, it's due to the tie rod AND drag link both being on the high-steer arm. Then again, it looks like you have your hydro assist cylinder on the upper arm, which will certainly put more stress up top. Assuming you don't want to change your setup around, maybe it's time to upgrade to a Reid knuckle instead?