Adjusting the string action on a Les Paul style guitar is pretty simple. Sometimes the access for the truss rod is at the heel of the neck. Leave a comment about your experience adjusting your truss rod, and include your own tips. Adjusting the truss rod with a 1/8" Allen wrench. Under the cover you will see a truss rod adjuster nut, and on Gibsons it’s almost always a ¼” brass nut. 7). Whip off that truss rod cover. The bridge sits on top of 2 thumbwheels which are threaded on to a post or into a ferrule installed on the top of the body. The trick is knowing when you’ve got the neck the way you want it. Loosen the nut if the neck is back-bowed. You rotate one of the thumbwheels clockwise to lower that side of … Improve this article for others! You can adjust the truss rod with a nut located at one end. FOOTNOTES. I adjusted my truss rod and capoing the first and fretting the 17th I've got .012 on either side. What do you pro techs/luthiers think is the best neck relief and string height for low/fast action and minimal buzz on a Les Paul? Sight the neck to … I have a 74 Les Paul Custom that I was trying to adjust the Truss Rod to get less bow in the neck (she is too flat, getting string buzz). Tighten the truss rod adjusting nut to straighten a neck that has an up-bow. The neck of most guitars has what’s known as a truss rod, which is a one- or two-piece adjustable metal rod that goes down the inside of the center of the neck. On Les Paul copies you may find a hex nut that requires an Allen key. Here’s how to evaluate and adjust your electric or acoustic neck with a minimum of tools. Vintage and vintage-style reissue Fenders, for example, require neck removal. I've seen some different setup opinions so I figured I'd ask here. If that’s the case, depending on the design, you may have to remove the neck to adjust the rod (Fig. Mark its … You’ll need a ¼” box spanner to adjust it.