Up for sale is a lefty Fender '66 Am Vint II Jazz bass neck. The defect seems to be the truss rod nut simply spins. The neck has a bad forward bow as is. Clean otherwise. It cannot be adjusted at present.
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Up for sale is a Fender Vintera 60s Jazz bass neck. Functionally, the truss rod nut seems to spin. As is, the neck has a forward bow. It will require repair.
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Up for sale is a Fender Vintera 60s Jazz bass neck. Functionally, the truss rod turns fine; the neck looks almost straight, however it looks to have a slight twist or hump. I have not strung it up, it may have fine tuning issues.
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Functionally, nut is broken. The truss rod turns fine; when loosened, it is straight. It may function well once nut is repaired; I do not know. I have not strung it up.
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Light wear; fretboard is in need of oil. Truss rod nut is missing; at present the neck has a significant forward bow. No idea if it works well with a nut.
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Up for sale is a Fender Player Plus Jazz V bass neck. Nothing to note. Functionally, the truss rod turns fine but even at maximum it still has a decent forward bow. It will require repair.
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Up for sale is a Fender Vintera 70s Jazz bass neck. Functionally, the truss rod nut is gone. The neck has a forward bow as is. It may function fine with the new nut, I have not strung it up and I don't know.
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Up for sale is a Fender Vintera 70s Jazz bass neck. Functionally, the truss rod nut turns; however, it requires a good wrench since the top half of the nut slot is partly stripped. When buried into the bullet, a rod can turn it.
eBay