These are the real deal drop in replacements for 80's les paul®- and all 3x3 headstock that had Gotoh tuners at one point. Classic Keystone buttons- Smooth as silk! These are very smooth and reliable tuners, and absolutely fit vGotoh and many Schaller and Grover mounting holes with ZERO modification.
These are great machines- I've used them on hundreds of custom made guitars- never had a bad one- never had a machine bind- just excellent quality machines.
I can find no functional difference between these excellent tuners and the far more expensive "branded" models, right down to the correct button and fancy Delrin bushings-