Another thought. The way you describe the outer tie rod end "twisting", it sounds like the steering arm and the rack are not operating in the same plane of motion. A rack that is in the same the plane of motion of the steering arm will not "twist" the tie rod as the vehicle is steered left and right. You might want to put the car on jack stands (under the lower control arms so the suspension geometry stays near that at ride height) and turn the steering wheel back an forth and see what is causing the tie rod end to twist away from vertical.
Pappy
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