Castor angle help needed

[Blake_9er]

I need some help guys. I’ve watched several videos and from what I’m hearing, it looks like my castor and pinion separation is too high. I ordered an angle finder and it will be here in a couple of days, but I used an app and got under the jeep to get some measurements. I measured on top of the ball joint and got an angle of 7*. I placed the phone on the pinion and it was -2*. A separation of 9*. I have factory axles with a BDS 4.5” short arm lift. The lift has BDS fixed control arms. My questions are:
Is 9* of separation too much?
If so, is there a way to adjust this without changing the arms?

 

[Chris]

If you want to fine tune it, you're going to need to get adjustable control arms (which I would personally have already with a 4.5" lift).

However, is your vehicle displaying any traits of negative caster?

That separation shouldn't be too much.