Pushrod and Pullrod Suspensions
Meaning: If you follow Formula One or other types of formula car racing, you may come across reference to these suspensions -- something you won't see on road cars. These names come from the action that the suspension rods take against the rockers on the car. If they rise from the wheel up toward the rocker, they're called pushrods. If the rocker is placed low and the rod slopes downward from the wheel to the rocker, it's a pullrod -- the car's forward motion pulls the rocker up. Why does all this matter? Aerodynamics. There are advantages and disadvantages to both systems, but pullrod suspensions generally allow for a lower center of gravity in the car. Whether it's a race car or a road car, a lower center of gravity is almost always better. But as with everything, it's a compromise. In this case, pullrod suspensions sometimes make access to rockers more difficult for quick adjustments.