Upgrading Epiphone Les Paul tuners

A great way to improve your guitar is by upgrading the tuners, especially on lower end guitars. This Epiphone Les Paul Junior was suffering from tuning problems, so the owner opted for a set of Grover vintage tuners. These are great tuners and keep the vintage Gibson look. Fitting these tuners required some modifying to the tuner holes as the housings on the Grover tuners is larger than the original Epiphone tuners. The rear of the hole is countersunk from .310" to .397" with a headstock reamer, this allows room for the housing whilst the headstock side of the hole is left alone, allowing for a snug fit. This job should never be carried out with a standard drill bit as this could damage the tuner holes or potentially split the headstock. The tuner bushings can now be fitted with a 10mm nut driver and new holes are drilled for the tuner screws.

Grover Tuners

Difference in size

Enlarging tuner holes

Drilling the screw holes

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