Akerman angle

[RedFish]

When another A-body owner fabed a Dakota Rack and pinion onto the stock K questions were posed concerning the akerman angle.
I started thinking "AlterK solved that puzzle. So how did they?"
I've studied AbodyJoes pics and borrowed one to post here.
What are these dimensions and is there a difference between left and right spindles ?

 

[autoxcuda]

When another A-body owner fabed a Dakota Rack and pinion onto the stock K questions were posed concerning the akerman angle.
I started thinking "AlterK solved that puzzle. So how did they?"
I've studied AbodyJoes pics and borrowed one to post here.
What are these dimensions and is there a difference between left and right spindles ?

The vertical up/down ? you show there effects the bump steer.

The horizontal left/right ? you show there effect the steering ratio and ackerman if the rack is NOT co-linear with the outer tie rods on each side. Meaning the rack is moved foward or back from a straight line across.

The most common way to get ackerman is the angle of the horizontal left/right ? viewing from the top of the car. 100% ackerman is when you draw a line from the lower ball joint to the very center of the rear end vertical and horizontal center. On a rear steer car like our mopar were originally, the outer tie rod is inward of the lower ball joint. On a front steer car the outer tie rod is outward of the lower ball joint.

 

[RedFish]

I knew of the rear steer to front steer change. Thats one of the things I'm out to achive. The previous done it simply switched stock lower joints left to right.
If I understand your reply the length of the arm between tierod end and spindle center is reletive to the distance rack sits forward or backof spindle centers. So I would need that dimension too. Fun fun