The Rack & Pinion replaces your existing steering box and linkages. It is mounted to the frame of the car and the steering column is extended to connect to the "Pinion." When you turn the wheel, it turns the "pinion" , which moves the "rack" to the right or left. The "rack" has tie rods connected to it that connect to your spindles and move the wheels left or right. Really a very simple system.

If you go to Google and search for Rack and Pinion Conversions, you will find a number of companies that offer kits. You can also search here as the topic has come up before. But, last check the CHR Search feature was not working.

Pat