vehicle with a power rack and pinion steering system is binding only while g comers. Which or these are LEAST likely to cause this condition. A. Strut mount bearing. B. Worn rack bushings. C. Worn rack and pinion gear. D. Lower ball joint.

The least likely cause of binding in a power rack and pinion steering system while cornering is:<br /><br />D. Lower ball joint.<br /><br />The lower ball joint is not directly related to the rack and pinion steering mechanism, which is where the binding issue is occurring. The other options (A, B, and C) are more likely to cause binding in the steering system.