Replacing the OE plastic-on-plastic design, these Genuine Spicer ball joints are a metal-on-metal design and include a grease zerk for extended life and serviceability. Our new Ball Joint Kit includes one upper and one lower ball joint, nuts and cotter pins: everything needed to service the front left or front right of your Jeep Wrangler JK. For peace of mind off-road and ideal for use with larger wheels and tires, Genuine Spicer ball joints deliver on quality and performance.Features: