Finding the exact size washers is near impossible.
Gibson truss rod maxed out.
Some older untouched instruments may also show resistance when the threads between the rod and nut corrode.
I saw your youtube video about your truss rod rescue tools and purchased the spacers immediately.
The truss rod is there to counteract the tension supplied by the strings on the neck which cause it to want to curve upward.
The washer really a spacer in htis application moves the nut.
Don t add washer make a spacer from an old nut.
It s just that the nut has found the limit of the.
That s a sign that the truss rod s been tightened to its maximum and beyond.
Since the truss rod was maxed out and couldn t get the neck any straighter i first did a heat press on the neck which i set up to introduce a good bit of back bow with no string tension and the truss rod completely relaxed.
I have a fender jaguar from the 90s that had a maxed out truss rod.
Normally tightening the truss rod would pull the neck back into line but this rod seemed to be as tight as it could go.
Make a spacer standoff instead.
When a rod is maxed out like yours is it s not.
The truss rod is used to adjust the amount of back bow curvature in your neck it is not used to manage string height.
Truss rods can break if too much tension is placed on an already maxed out truss rod so caution is warranted.
This video assumes you are.
The threads on the rod and is up against the solid non threaded main section of the rod.
The truss rod has more than enough adjustment room now.
That the rod can t handle any more load tension.
This job used to be so hard that guitar necks got thrown away as unfixable dan erlewine shows that it s now pretty simple with stewmac truss rod rescue to.
It s in a five piece laminate maple walnut neck.
I don t have a picture of the truss rod handy but my 1938 washburn was gibson built and has the same truss rod.
6188 for 10 32 rods used on gibson.
You can see about 1 8 of rusty truss rod sticking out of the adjusting nut.
Btw it has worked well and that neck is arrow straight.
