Hey Gary - I like your explaination better than mine.
John
GSTROM99@aol.com wrote:
>
> The force that "centers" the steering is "caster". Caster is the vertical
> angle of the upper and lower ball joints/pivots. The more the upper pivot
> point is back from the lower, the more caster angle. The force that keeps
> the wheel centered (and returning to center) is actually the fact that when
> the wheel is turned, the tire/wheel has to lift that side of the car
> slightly. That's why you want both sides at the same angle when doing an
> alignment, otherwise it will pull to the side with the higher angle. Think
> of the angle of the fork tube on a bike, same principal.
>
> Gary
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