EFFORTLESS & ACCURATE INSTALLATION: This tool revolutionizes the installation of bolt-retained bearing caps, ensuring precise alignment within minutes. Its innovative design significantly reduces the risk of damage to delicate needle bearings during the installation process, making it an essential tool for professionals. WIDE COMPATINILITY: Commonly found on class 6-8 transportation trucks and equipment. (For use with Kenworth, for use with Peterbilt, for use with Freightliner, for use with Mack, for use with Volvo etc.), Spicer 1610-1880 Series. PRECISION ALIGNMENT: The tool features meticulously designed outside guide bolts that guarantee the accurate alignment of bolt-retained bearing caps. Coupled with a forcing screw, it allows for the seamless and efficient installation of new bearing caps using either an impact or hand wrench, streamlining the assembly process. SAFE & RELIABLE: By eliminating the need for a hammer in the installation process, this tool prevents the frustrating dislocation of needle bearings. This not only protects the integrity of the bearing caps but also safeguards surrounding vehicle components, ensuring a safer and more reliable repair environment. NORTH AMERICAN CRAFTMANSHIP & INNOVATION: Proudly made in North America. Trust in a product that delivers exceptional performance and reliability, backed by a commitment to quality and customer satisfaction.