In an earlier contribution to this discussion,
dennis@home wrote:


On modern cars the steering geometry changes by design.
I can't see how the steering rack makes any difference though.
Its controlled by the top and bottom bearings of the hub and the
direction the wheel is facing, not how much rack is hanging out of
each side.

That's not quite true! If the links from the ends of the rack to the
steering arms on the hubs are of unequal length, there is a strong
likelihood of bump steer. When correcty adusted, those links should shadow
the wishbones - allowing the wheel the move up and down without steering.
But if you make one too long and the other too short, that no longer
applies.
--
Cheers,
Roger
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