Recirculating Ball

Recirculating ball, also known as recirculating ball and nut or worm and sector, is a steering mechanism commonly found in older automobiles, and some trucks. Most newer cars use the more economical rack and pinion steering instead, but some manufacturers (including Chrysler and General Motors) still use this technology in some models; e.g., the Jeep Wrangler and the Crossfire for the durability and strength inherent in the design.