Easily restore proper operation of your vehicle's four-wheel drive (4WD) system with Dorman's Locking Hub Service Kit. Sold as a complete kit, our Locking Hub Service Kit includes all necessary components for a complete and convenient repair. All Dorman products are engineered in the United States and backed by 100 years of automotive aftermarket experience. Our solutions are thoroughly tested and inspected, and if you experience any difficulty installing or using our parts, we have a dedicated technical support team of ASE Blue Seal certified professionals ready to help. To learn more about our quality and innovation, visit DormanProducts.com.