--Not totally clear on the picture but if possible I'd grind the
sheared-off flush and drill a new hole somewhere else for a new dowel pin.

--
"Steamboat Ed" Haas : I can make damn near anything
Hacking the Trailing Edge! : ...except money, sigh.
http://www.nmpproducts.com/intro.htm
---Decks a-wash in a sea of words---