CAP / QA1 K member

The Ackerman is a problem.

If I remember correctly even CAP marketed that rack as only for drag racing.

If you “need” to have a rack and pinion then a full k frame replacement and coil overs is the way to go. RMS, HemiDenny, etc. Use suspension actually designed for front steer instead of trying to band aid the factory rear steer suspension to work with front steer components.