FEATURES: 1)5192 Bearing Cup Installer Tool-- Accurately aligns bolts retained bearing cups, eliminates the possibility of damage to the needle bearing. Fits for series 1610 to 1880 and nearly all other heavy-duty truck and machine type u-joints with bolt-retained bearing cups. 2)10102 U Joint Puller-- Provides ultimate brute strength to easily remove seized u-joints cups for most Class 6-8 trucks and machinery. Eliminates dangerous vice, socket or hammering methods and reduces the risk of damage to driveshaft, yokes, joints or bearing cups, reducing the need to purchase replacement parts. .