This is for the vehicles that have the Y-Link style steering. Many vehicles get the "dead spot" in the steering wheel. Typically, the driver would find the steering wheel turn a couple inches to the left or right, but yet drive straight. The issue is that the drag link, the tie rod link from the steering box to the passenger side, creates a "rolling" motion at the passenger side connection. When torque is applied to the steering, this tie rod end rolls up the main tie rod assembly, and when turned the opposite direction, it rolls down the tie rod. Our "Cure" prevents that up-and-down rolling motion, resulting in a much tighter steering and better control. Made of machined Delrin plastic, this spacer will tighten up the loose spots, and give resistance to the "roll." Not all tie rod ends are created equal. Some have a long pin, some have a short pin. This item has been specifically made to work with a factory tie rod end. In some cases, you may need to sand the outside surface to allow for a flush fit. Proper seating is snug, not tight. It naturally has a grease pocket built-in. In most cases the tie rod boot may need to be removed to properly seat the tie rod end, but will also fit over the boot.