Don't use a hacksaw. Just unbolt everything and then pound the cap off the shaft from underneath. It isn't too hard, just have something soft underneath if you're on land.

:: I've helped drop a few rudders. Where are the pics and
:: what is the question?
::
:: :: I have some pictures of the top of my rudder "shaft."
:: :: The piece that the tiller assembly bolts to, is
:: :: something of a mystery to me. Could use some help
:: :: figuring out how to disassemble so I can drop the
:: :: rudder. Don't want to break anything or use a hacksaw.
::
:: :: Thanks,
::
:: :: J