Large diameter tires and hydraulic-assist steering can play havoc on Wrangler JK models if the front track bar and steering box are not reinforced. The chassis can only flex so far before something has to give. The factory track bar mount on the chassis is particularly vulnerable to extreme forces. Crank on the steering wheel too hard and you risk tearing the OE mount completely off of the frame.
Unfortunately, the output shaft on the steering box is even more troublesome. The internal bearings that support the shaft are poorly positioned and low-quality causing them to wear out very quickly. Some indicators include a noticeable clunk noise and excessive play in the steering wheel. And since the OE steering box is not serviceable, the only option is to replace the entire assembly.
Front Track Bar and Sector Shaft Reinforcement Kit; Front; Strengthens OE trackbar mount; Supports sector shaft; Connects driver- and passenger-side chassis rails; Heavy gauge and DOM steel tube construction; Powdercoated, anodized and bare metal; Welding required; Kit.