Cal 40 beam
The Cal 40 beam tabs are forward of the bulkhead. It can be done to remove and replace it
without disturbing the bulkheads but it is not easy.
There are some photos here.
http://www.flickr.com/photos/9030851@N08/sets/72157600368862907/
They came from an owner on this group who has more information.
Mike Kennedy
Conquest Cal 40 # 96