Fran said: I cant get on with the Mustang trem to be honest, the Jag trem is my favorite along with the Floyd Rose.
***covers the kids ears***
Fran, watch your langauge! If you say "floyd rose", all the kids will start saying it and walking about with floyd roses on their acoustic guitar to agravate the old people!
Vintage Jazzmaster tremolo - bottom of tremolo plate ---> end of the stud bolt - 32mm
I checked another vintage aftermarket Jazzmaster tremolo and it was 28mm
Stock vintage Jazzmaster (body thickness 1 9/16" (40mm)) tremolo route was 1 1/4" (35mm).
Truthfully you could grind the stud bolt down to 25mm (1") and still have a few threads to adjust the spring tension.
Warmoth Mustang bodies are a 1 1/2" thick (38mm), vintage were apr. 1 3/8" (35mm).
Don't trust my vintage guitar bodies, cause my stuff has been sanded and refinished a few times.
Anyways, if you grind the tremolo stud bolt down to 1", you'd still have 1/2" of wood behind the tremolo... plenty. Jazzmaster are big bodies, I believe the tremolo route and lower control route (vol/tone/jack/toggle) were routed so deep to cut down on body weight. The upper horn control cavity routes are shallow, only cause of the tummy contour behind it.