Re: are there any tuners that will fit my Gibson without new holes?
take a look at the stewmac catalogue, the dimensions and types are listed as drawings so you can see what's what if you really need to change them out, I tried grovers as drop in replacement, but they were both stiff and had ridiculous amounts of free play, so I returned them, lubed the old klusons, made sure everything was running freely, tuned up keeping the strings taught to take out the post slack and have never looked back ('cept when being chased by the filth), nut slots are usually more of a bind (sorry, couldn't resist it).