tru Posted May 9, 2020 Share Posted May 9, 2020 Will most Kluson 3-on-a-plate tuners drop right into the headstock of a J-45? Those Grover mushroom/kidney things are sh@t. Quote Link to comment Share on other sites More sharing options...
jedzep Posted May 9, 2020 Share Posted May 9, 2020 (edited) Yeah, they really give the head stock a clunky disproportionate look. I've swapped out plenty of vintage ones and always had good luck, so I think you'll be good with modern replacements, especially since measurements are always provided. The ID (inside diameter) of the peghead holes has to jive with the OD ( outside dia ) of the bushings, so keep that aspect in mind when you shop. It should be an EZ swap. Edited May 9, 2020 by jedzep Quote Link to comment Share on other sites More sharing options...
j45nick Posted May 9, 2020 Share Posted May 9, 2020 Stewmac sells conversion bushings to convert the larger Roto peghead holes for use with 1/4" stringpost tuners. The existing hole spacing should be OK, but verify with the dimensions of your new tuners. You will need to drill new mounting screw holes for the new tuners. These must be drilled, since the tiny mounting screws will shear off if you try to force them. Plenty of folks here have done this conversion. There are several brand variants of the original Kluson-style tuners. Stewmac carries most of them. conversion bushings Quote Link to comment Share on other sites More sharing options...
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