If camber and castor appear to be ok (the jeep drives and looks fine w/ a 3.25" lift) do you set all four control arms length to what the current fixed control arms are?

 

a factory JK front axle is solid and camber cannot be adjusted. if your jeep feels like it drives fine at highway speed, you do not need to add any more caster. if you have all four adjustable control arms, you can technically set them all to factory length but, depending on how much lift you have, it would benefit you to adjust them to help reposition your axles back to where they were under your jeep. in other words, make the lowers a tad longer and set the uppers to where they need to be.