Why does the castor angle need to increase when adding power steering? None of the factory original components related to steering geometry have been altered. Is it because the addition of power steering allows you to notice that you didn't have enough camber to begin with, prior to adding the power steering?
Carl
In the CPP kit's case, the steering geometry is radically altered from stock. The steering gearbox moves forward of the axle on the outboard side of the frame. The steering arm on the front driver's side spindle has to be cut off. A new steering arm is supplied in the kit along with a short, custom pitman arm for the Saginaw 800. I flunked geometry, so
I'm no expert! But, I suspect that these changes combined with the fact that lot's guys end up lowering the truck in front dictates the need for
an increase in positive caster angle in this particular CPP kit's case.
