I often try to remove these types of rods by separating it from the anchor and sliding it out but that wasn t going to work with this broken gibson truss.
Gibson truss rod channel.
As they are tightened the push against the center of the curve forcing the neck backwards.
Always loosen the truss rod nut first as if it is stuck and you over tighten it then you could damage the guitar.
A quick review of an alternative bit you can use to route the truss rod channel for the stewmac hotrod truss rods amazon link.
One design is the rod from allied lutherie above and also lmi though they are slightly different the overall design is close to the same.
The nut is used to tighten the rod and straighten the neck.
It consists of a long round piece of 3 8 approx steel with an anchor on one end and a nut on the other.
Old truss rods can be trouble because the nut can rust or otherwise get stuck.
There are two rods that i like very much.
T nuts to hold the bolts on the truss rod channel routing jig.
On a newer guitar adjusting the truss rod isn t particularly daunting as long as you have some idea what you re doing.
Exerting too much force to loosen it can bust the rod or strip the nut.
The first is a vintage truss rod originally designed by gibson.
Now you re ready to start adjusting.
The latest version from allied lutherie is really beautiful and very high quality.
Check relief at 12th fret using steel rule or feeler gauge.
Once the position of the neck is set with the bolts the nut can be tightened to prevent the bolt from turning.
These will be the ends of the channel.
When the truss rod is in the correct position make two pencil marks on the neck representing the front and back of the truss rod.
How to carve a neck pocket how to make a magnetic truss rod cover a new way to make a humbucker pickup routing template how to install a truss rod and.
Appropriate lubrication can help free it of course.
Single acting truss rods as used by gibson and fender sit in a curved channel inside the neck.
Create the truss rod channel.
Place the truss rod on the centerline of the neck and position it according to the guitar plans you have designed or using.