I will use the one cast in and then make the rack able to move back and forth to adjust Ackermann and have a slip joint in the steering rod from the steering column. Pretty slick too as, for the fronts, the arm is angled down to offset the caster, meaning that when the steering arm is perfectly level, the spindle appears to be at about 7 degrees caster, so that will make resetting caster at the track easy if I futz with camber and so forth.
I will drill them straight and get rid of the damn taper on those, use a thru bolt and a standard rod end, and then I can machine spacers to set bumpsteer based on where final rack placement is.
The rears point rearward, so I can set those at 14 deg if I want to be particular and keep everything lined up like the front - technically you don't need caster in the rear but some is good as it supposedly keeps everything loaded and not at a zero point where every little bit of clearance in ball joints is then wandering around.
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