Posted on other forums but ill try here as well, I have a 04 busa, got a motor from a 07 but the 07 drive shaft is 1/4 longer than one on my 04 motor and spline are thicker, I know from a poster on another forum they should be the same , so not sure if suzuki late 07 started putting diff trans in those bikes ahead of the gen 2 or what? any ideas thans