[quote name='bassmachine2112' timestamp='1408812391' post='2533765']
Hey ,hey jazz bass on steroids,those super ferrites are good.
Truss rod nut is brass and the rod is steel.
A small dab of light oil,then a little lighter fluid to run the oil down the thread.,apply every 2 hours about 3 or 4 times-leave overnight ,try in the morning.
Should free off,although it could take a few days,usually not,run the nut up the rod a few mm,s so there is a small cavity and put a small drop of the light oil in and let it seep down the thread and adjust away.
If they are resisting after a few days-heat up a 5/16 socket and put it on the nut and wait a few minutes for the heat to go into the nut and try it.
Remember to use very small amounts of penetrant as it will seep into the wood of the neck.
If in doubt get a good guitar tech.
[/quote]
Thanks - something to try, at any rate.