Topmusicanswers
What size is a Gibson truss rod wrench?
5/16 inch socket used to adjust neck relief via truss rod for USA Gibson guitars.
Do Gibsons truss rods?
One-way rod used in new Gibson® guitars! Direct replacement adjustable neck reinforcement rod as installed in Gibson® guitars since the late '60s. Traditional "one-way" design: turn the adjustment nut clockwise to correct neck upbowing.
