Guys there is something i want to know. If i have a 22 fret bolt on neck on my guitar and i wish to change it to say 24 fret neck. Is it possible? Also a guitar having a tune o matic bridge with stop tail piece can that be changed to tremolo bridge? Any info will be really helpful.
what's the guitar make / model? Replace with 24 fret neck - probably not. There may not be any space between the 22nd fret and the neck pickup for the additional frets. Kahler has a trem bridge that can replace a TOM bridge.
In case you don't have extra space between the 22nd fret (of your regular guitar neck), and the neck pickup - you have one more choice to go for 24 frets. Get a longer custom built neck (like a bass guitar - of course not as long though). Ultimately what matters in the guitar is the ratios of fret-to-bridge lengths.