In this tutorial, we learn how to overhaul a DT freehub body. First, pop the freehub off with your hand and a rag. Use an axle clamp if this will not pop off with your hand. Now, remove the end cap, freehub body, spring, star ratchets, second spring, and spacer. Set these on a rag and then use another rag to clean each of the parts off. Make sure all grease is gone along with any sand or dirt. Then, use a DT grease on the ratchets with a light coat. After this, re-install the parts that you took off and you're all finished.