Originally Posted by Ozrider
.....This is pretty common in boats, I am told. If you have a marina or boat dealer near you, ask them how they get the pieces apart.
I think that they just use the offending assembly as an anchor for their boat.
Originally Posted by ponchotempest
If you dont mind possibly breaking your BB tool, then use an impact wrench.
If you use an impact wrench, then you might be well served by following Rev.Chuck's advice about clamping the BB tool to the BB.
Giving it a few sharp raps with a wrench might help to loosen things up a bit. (Just remember that you're NOT trying to deform anything. The idea is that the vibrations that we hear as a metallic ring may weaken the corrosion.)