Gibson truss rods can be adjusted by turning a nut that’s hidden under the truss rod cover on the headstock Conversely, an excessively tight truss rod can force the neck into a back-bow, where the nut drops in height relative to the bridge and the strings move towards the fretboard. Nec...
How to Adjust a Gibson Les Paul Truss Rod The Gibson style truss rod is accessible through the headstock/peghead. This is much easier to adjust than the Fender style rods. Most guitars today have adopted the Gibson style rod because its easier to make the adjustments with the access point i...