I have have a 540 bbc in a cat with an Arneson surface drive that uses a BAM transmission. The starter damaged the teeth on the flywheel and i want to replace it. I have never done deep work on a transmission boat. can i unbolt the trans from the bell housing and removed the bell housing in the boat? or will i have to remove the engine?

I had to replace my ring gear this spring,I just unbolted the engine from the transmission and lifted it up and rotated the engine just enough to unbolt the flywheel,then put a new ring gear on and dropped it back down.