On Sun, 17 Apr 2005 15:01:42 -0700, marlinspike wrote:
OK, now I'm confused. I was thinking that the tie-rods, which are
connected to the steering box, controlled the side-to-side (i.e.
steering) motion. I was also thinking that the upper and lower ball
joints allowed the wheel to pivot up and down on the control arms,
(vertical suspension movement) while allowing the tie-rods to move
the wheel assemblies left and right. My thinking was that rocking
the wheel at the 3 o'clock and 9 o'clock positions tested the
tie-rods more than the ball joints and that grabbing the wheel at
the 12 o'clock and 6 o'clock positions (OK, allowing for a few
degrees of caster) was more definitive for ball joints.
Of course, if the wheel bearings are shot/loose the wheel will
probably wiggle no matter where you grab it.
Any front end-wizards have a take on this?
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