hey guys, i recently picked up a 68 p bass which was actually made early that year, so it still has the features of a 67 before they changed the fender logo and location of the thumb rest. it's all original except for the tuners, which i'm not too crazy about. i figure if i'm going to replace them, i may as well try to hunt down some vintage ones. i'm not too sure about compatibility, though. do tuners from certain years not fit on other p basses? any help would be greatly appreciated. thanks!