I feel like I should know this, but do upper or lower CA’s change the caster? I called an alignment shop and asked if they could adjust the caster angle. All I said was, “I have adjustable control arms on my jeep. Can you guys adjust the caster to 6* for me?”….. They said they could, but that the lowers affected the caster more. I thought it was the other way around.
EDIT: I don’t have a 4x4 shop within 100 miles of me, so an alignment shop will have to do. Most mechanics around here source the alignments and stuff out the same places I’m calling.