Front Pinon Angle

[Jon Wildes]

The front pinion angle is a compromise, it has to be such that you get enough caster angle while not getting an excessive pinion angle. Pinion angle takes precedence over caster angle but both are important. If you're not getting front driveshaft vibrations and your steering returns to center ok after completing a turn, I wouldn't mess with the front pinion angle at all.

is there a how to for dummies on this? really need to wrap my head around all of it.