Up for sale is a Fender Vintera 70s Jazz bass neck. It is a factory blem with USED stamped on the back of the headstock and part of the serial number removed. The defect seems to be the truss rod was over-adjusted and it cracked the first fret (now it is a true authentic 1970s). It adjusts, but the rod itself squeaks and is acting defective. Otherwise, the neck has a moderate forward bow when loosened and when tightened is mostly straight. However, it may have fine tuning issues as I have not strung it up.