IIRC, sway bar arms are supposed to be level +/- 10 degrees. Other factors can affect this, like, wheel/tire, suspension & frame clearance. Something to be mindful off WRT the JKs' rear links is possible interference with the rear hard brake lines at the frame. I ditched the links from my suspension mfr's kit for this reason. They were mounted to the inside of the bar, rather than in the stock outside location, and had potential to shear off the hard lines at full stuff, even with the mfr's bump stop extensions. I went with Poly's heim-style links, which mount to the stock locations. Very precise, really improved on-street handling, too.