This Gibson EBO bass had a broken truss rod, and the neck had too much bow in it. It is also very important to know the parts of a guitar neck for getting more idea on this. Because we could hear it rattling in the neck near the neck pickup we had a pretty good idea it was broken at the anchor. The first step was to pull the rod out. Ron tapped against the nut until he could get ahold of it with a Robogrip and PULLED! Once it was out he could use it and magnets to locate the anchor. Next step was to remove the last 2 frets and drill down into the fingerboard to hopefully expose the anchor with the broken end of the rod still in it. It worked! He cleaned out the hole and removed the anchor. Since the rod was long enough he threaded the broken end and extended the threads on the other end where the nut goes. Next he cut a new anchor from a piece of bar stock, drilled and tapped it. The repaired rod was then waxed, threads and all,...