OTC's Heavy-Duty Bearing Cup Installer quickly and easily installs bearing cups on bolt-retained universal joints For use with Spicer series 1610 to 1880 and nearly all other heavy-duty truck and machine type u-joints with bolt-retained bearing cups Design automatically aligns bearing cups during installation for a hassle-free job Eliminates the possibility of damage to the needle bearings Crafted from high-grade materials to ensure quality performance over the lifetime of the tool