A heavy-duty solution for disassembling even the most seized stubborn U-joints in minutes on virtually all Class 7 and 8 trucks and machinery.; Engineered for use with up to a 1″ impact tool; Eliminates dangerous vice-and-socket or hammering removal methods; Does not damage the driveshaft, yokes, joints or bearing cups; Applications; U-Joints with bearing cups 1.5″ to 2.2″ O.D; Spicer 1610, 1710, 1760, 1810, 1880 Series; Spicer SPL 140, 170, & 250 Life Series; Meritor (Rockwell) 16N, 17N, 18N, 1710 Series; Meritor RPL 20, 25 Permalube™ Series