Locking tuners for an early McCarty?

[thesockmonster]

Trying to find drop-in locking tuners that will work with the thinner headstock. Suggestions?

 

[yankeebulldog]

These work, you shouldn't have to replace the bushings.
https://www.allparts.com/TK-0735-001-Locking-Tuners-Vintage-3x3-Nickel_p_3635.html

 

[vchizzle]

http://www.philadelphialuthiertools...kluson-style-3-x-3-guitar-tuners-cosmo-black/
Gotoh SD90. I've got a few sets of the self locking at the bottom of the page that are 58.99 that I like quite a bit. Now they have the type with the wheel on the back too - haven't tried those.