Removes and Installs Pressed on Power Steering, Alternator and Air Pump Pulleys WITHOUT SLIPPING. The unique puller body completely houses the pulley hub to prevent slipping on even the tightest pulleys. Fits most domestic models including GM 3.1 and Quad 4 engines. Works on traditional V shaped pulleys and serpentine belt system pulleys. Also works faster than other conventional pulley pullers. 38910 Short 3/8-16 Installer Adapter 38920 Short 8mm Installer Adapter 38960 Long 3/8-16 Installer Adapter 38930 Med. 3/8-16 Installer Adapter 39030 Handle 38950 Long Pin 38940 Short Pin (General Purpose Removing Adapter) 39070 Pusher Shaft 39040 Washer 39050 Nut 40060 Bearing 38990 Puller Screw 39020 Large Jaw 39010 Small Jaw