Steering issue POLL

[RH 67]

I had a 2016 JKU
Now have a 2018 JLU Rubicon and a 2020 JT Rubicon. The JL had a steering damper recall. Feels great now. The JT has 1k miles on it. I've taken it back to the dealer twice the loose steering is much better, but the steering wheel is still about 2 degrees to the left to drive in a straight line.

You should have a little more castor on the passenger side to compensate for the crown in the road, most straight axles are this way even the Ford SD`s.

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[ShadowsPapa]

You should have a little more castor on the passenger side to compensate for the crown in the road, most straight axles are this way even the Ford SD`s.

Right.
Road crown tends to cause a vehicle to "wander" or work toward the shoulder, having more positive caster on the right will offset this as a vehicle will tend to move or pull toward the side with the least positive caster (or the side that has negative caster)
Since camber isn't used on these, it's done with caster spread - or the difference between the caster on the right vs. the left.

You cannot change this difference. You can change caster with adjustable control arms, but you can't change the difference.
If the difference between left and right is .5 degrees and you change the tilt of the axle, the difference will still be .5, you will simply change the left and right by the exact same amount as you can't twist the axle ends independently.