caster angle

So I was working on my girlfriends 97 auto 4.0 TJ because of some issues when alignment. Specs are 4 inch lift, fully adjustable control arms (no idea the brand), adjustable front track bar, Slip yoke, Ford 8.8 in the rear) PO would wheel it, but my girl friend is looking to use it for a daily...

Hi I was wondering if a Jeep tj is at 6 inches of lift height. Should the caster be at stock spec or lower? And what is stock caster on a tj ? Thanks

After my suspension install the steering wheel returns to center just fine, and aside from my vibration (yet to be identified) the Jeep drives perfect. I was measuring my caster angles today just to check, and the drivers side is 9 degrees, while the passenger side is 6 degrees. I measured them...

I know how to adjust the caster with my new control arms. What I am trying to figure out though is the process for doing so. I'm assuming that the vehicle needs to be completely flat on the ground in order to measure the caster angle and pinion angle, yes? So, let's say I install these...