i can't find the article. someone did a test with just the pitman and then the matching idler arm. with checking the alignment at each step. i think just the pitman screwed up the ackerman
Youre right, it affects the ackerman too, but that doesnt hurt so much.
The problem is: Lock the steering wheel in the middle, lift the car in the front and the wheel have the same change of toe in/ out on both frontwheels. If idler and pitman doesnt match you will have different changes on both wheel. On bumpy roads you will have a feeling like a drunken driver.
