rack n pinion front steer ackerman issues...explain...

Anyone using factory spindles in a front steer application....try this test

For ackerman, turn full right OR left....doesn't matter, then look ....or measure, how much further the outer wheel is turning than the inner. That is the opposite of what it should be and it causes the outer wheel to want to roll over....not good

The reason most see the suspension pulling up and down is because of (incorrect) rack location with the factor suspension pivot points. That combination causes severe bump steer resulting in the suspension NOT being able to hold the (toe) alignment. If you take the factory suspension set up and increase the toe (in) significantly , the suspension will pull down when backing and straighten itself back out going forward. It really becomes noticeable when weight (motor /trans) is added to the car.

There are ways to make it factory spindles / LCA's work (somewhat)....but from my experience, you will spend way more than you save.