CV Joint Removal Tool with 63mm 48mm CV Joint Fork and Outer CV Joint Adapter 35417321Specification This CV joint fork has internal threads and the slide hammer bar has external threads. The joint fork can be installed on the slide hammer bar and is suitable fit for most vehicle models. Material: 45# carbon steel. constant velocity joint fork size: 48mm&63mm Sliding hammer size: 4lbs. Feature 1. Product Design: The CV joint puller makes it easier to pull out old stubborn CV axles and install new ones. It won't damage the aluminum