What is a 9-land steering gear? Chrysler's Joe Grace wrote: "The steering gear for the Charger has a nine land valve which improves steering feel by improved damping characteristics especially in aggressive cornering." Another engineer described it more thoroughly:
"Imagine a shaft that is not round, but has nine sides, and is inside a round tube. That creates 9 separate passages (between the outside flat surfaces of the shaft and the round inner surface of the tube). When the engine is running, power steering fluid enters at the base, and exits through ports in the tube's sides. When you drive straight, there is no power assist because the fluid is passed through the tube tangentially, so all the road feel from the tires come up to the steering wheel. As you enter a turn, at slower speeds, you can turn the wheel faster with less effort because the 9 sides act like a vane pump or pinwheel in a garden sprinkler; the faster the wheel turns, the more fluid passes through, and the more assist you get. In reality it's a little more complicated, but this gets the gist of it across. In my opinion, it is simply a band-aid to a poor, probably Mercedes-based design."