steering and hi/lo issue

[auto2]

easiest way to understand caster is with a bicycle.
the front fork is angled forward at the bottom which causes positive caster. it is that caster that gives you the feeling that the front tires want to return to a straight direction after a turn.
spin the handle bars around 180 degrees and try to drive and you'll see what happens.

if the tire was a stick perpendicular to the ground positive caster would be moving the top of the stick back twords the driver.

camber is moving the top of the stick in twords the center of the car or out away from the car.