Wandering steering???🤔🤨

[Robznob11]

Ok guys searching for answers. I have new everything. Porterbuilt 1" forward ,1" narrowed arms. Brand new red head box, every part of the steering is new except drag link. I have a Cherokee steering shaft, no rag joint just u joints. The problem is ....it goes fairly straight down the road but seems to wander some. I have 5 1/2* caster -1.5 camber at ride hight and 1/8 toe in. I have air ride on 4 corners. So the question? Is it typical old design just have to live with it? Could there be play in the van tilt? Will the porterbuilt front sway bar help? Could it be because I run 25 psi in the rear drag radials. I even feel it at low speed. I do have a bump steer kit I want to install. I measured today and as the suspension goes down it toes in. When I went 2" above ride hight it toed out almost 1/2". I don't feel like I'm getting that much suspension travel just putting around tho. What do y'alls trick drive like...any have tight steering?