Heres the way to shim EVERYTHING on your car.
FEEL you car. haha sounds funny but really, learn what you car feels like before you run it. then feel what it feels like after you run it. you'll soon be able to tell when slop develops or when something just doesnt feel right.
To shim the drivetrain the thing to remember is that you want as little slop as possible but with things as free as possible first. So keep adding shims, one at a time, and moving things until you notice friction. At this point you have at least 1 too many shims. Remove a shim and see how it feels, see if it feels like there is a LITTLE bit of side play. Now try removing one more shim, see if it free's up some, but also if it develops a bunch of slop. The tradeoff here is that a little bit of free-ness isnt worth a bunch of slop.
This goes for everything really...hingepins, kingpin screws, drivetrain shimming, etc.
My money knows that Hara can pick up your car and tell you what to change to make it better, without driving it