Tuner

    Gotoh SD90-MG Magnum Lock, vintage-hole version

    Gotoh's locking magnum tuner in their vintage-hole sizing, for guitars with narrower vintage-style tuner posts rather than the modern 10mm standard.

    6 guitars checked: 6 likely drop-in.

    Drop a hero product shot

    Where to buy

    We haven't added a verified place to buy this one yet.

    Part specs

    Tuner hole size

    8.5mm

    Confirmed

    Gear ratio

    15:1

    Confirmed

    Mounting pattern

    Single rear mounting screw with a press-fit vintage-style bushing (Kluson-style).

    Confirmed

    Installation notes

    Gotoh makes both a modern 9mm/10mm locking line and a separate vintage-hole locking line, worth being specific about which SKU you order since Gotoh's catalog has both, and only the vintage-hole version fits guitars with narrower vintage-diameter tuner posts.

    Guitars we've checked

    6 guitars checked: 6 likely drop-in.

    Fender Vintera II '50s Telecaster

    Fender

    Vintera II '50s Telecaster 2023

    Likely drop-in

    Should swap straight into the existing tuner holes.

    Why we say this

    Vintera II vintage-spec tuner holes match this tuner's vintage-hole sizing.

    Fender Vintera II '70s Telecaster Custom

    Fender

    Vintera II '70s Telecaster Custom 2023

    Likely drop-in

    Should swap straight into the existing tuner holes.

    Why we say this

    Vintera II vintage-spec tuner holes match this tuner's vintage-hole sizing.

    Squier Classic Vibe 50s Telecaster

    Squier

    Classic Vibe 50s Telecaster 2020

    Likely drop-in

    Should swap straight into the existing tuner holes.

    Why we say this

    Vintage-spec Squier CV tuner holes match this tuner's vintage-hole sizing.

    Squier Classic Vibe 60s Jazzmaster

    Squier

    Classic Vibe 60s Jazzmaster 2020

    Likely drop-in

    A locking tuner option sized for the existing vintage-style holes, just make sure you order the vintage-hole version, not the standard 10mm one.

    Why we say this

    Gotoh makes both a 9mm/10mm locking line and a separate vintage-hole locking line; the vintage-hole version matches this guitar's existing holes.

    Squier Classic Vibe 60s Stratocaster

    Squier

    Classic Vibe 60s Stratocaster 2020

    Likely drop-in

    Should swap straight into the existing tuner holes.

    Why we say this

    Vintage-spec Squier CV tuner holes match this tuner's vintage-hole sizing.

    Squier J Mascis Jazzmaster

    Squier

    J Mascis Jazzmaster 2023

    Likely drop-in

    A locking tuner option sized for this guitar's vintage-style holes, based on the pattern seen across the rest of the Squier Classic Vibe range.

    Why we say this

    Gotoh's vintage-hole locking line is built for the same ~8.5mm bore as the guitar's other vintage-style locking tuner option.

    Help improve this data

    Nothing is flagged as an open question here right now. If you have fitted something to this SD90-MG Magnum Lock, vintage-hole version that we haven't covered, send it in.